.260 Remington

[Guest]

GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
260 loads
10/07/2014

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Let's get these separate from the other 6.5mm loads

260 Rem Tacmatch chamber
260 rem brass
140gr berger vld .010" off the lands
Win LR primer
H4350 43.5gr
2900fps out of a 27" rock barrel

Single digit ES and 1/2 Moa
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Meplat

XFirst Sergeant
Rating: 3.5/5 this site
2017 posts this site
Re: 260 loads
10/09/2014

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22" 5r 1:8 twist Bartlein 260 Tac-match reamer (LongRifles Inc. shop)

.260 Rem brass
CCI 200
140 Hornady Amax
42.3gr H4350
2738fps

Vertical spread is less than 1/2 MOA out to about 600-700yd, then stays sub-MOA as far as I've shot it.
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Meplat

XFirst Sergeant
Rating: 3.5/5 this site
2017 posts this site
Re: 260 loads
10/12/2014
(3 votes)

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Here is most of the more complete data from the old site, organized by barrel length. I have edited it to a fairly standard format. I did not include ES/SD, COAL, or group size. I don't think they're important as your COAL limitations will be different from the next guy (and it's more work

). I did include jump/jam info because that is pertinent and useful to everyone. You're welcome.

20”



20” AAC barrel
140 Nosler Custom Competition


RP 260 brass
43.9gr H4350


CCI 200
2745fps







22”



22" 1:8 Hart
140 SMK
Lapua 260 brass
45.0 gr H4831sc
.015" jump
2625 fps



22” Bartlein, 1:8 5R

140 Amax

R-P 260 brass
42.3gr H4350


CCI 200

2738fps avg



22” Lilja
139gr Scenar
Winchester brass


IMR 4350 42.8gr
CCI BR2
2700fps



24”

24” 1:8 Savage OEM


108g Scenar
Federal Brass
46.5g H4350
Primer WLRM
.007" jump
3220fps




24" Bartlein
139gr Scenar
Lapua 260 brass
H4350
Primers: Federal 210M
.015" jump
40.7gr- 2700fps
42.0gr - 2780fps



24” 1:8.2 5R Bartlein

139 Scenar
Lapua 260 brass
42.5 H4350
CCI-BR2

.0175" jump
Velocity 2725@ 20'




24” Barrel

142 SMK
R-P 260 brass


38gr Varget

Wolf LR primer

2765 fps



24” 1:8 Barrel

140 Berger VLD
R-P 260 brass
42.8 gr H4350
0.010” Jammed
2793fps



24" 1:8.5 Brux
130gr Berger VLD
Winchester 7mm-08 brass
48.5gr H4831SC
CCI BR2
2884 fps



24" Bartlien
140 Amax
R-P 260 brass
41.8gr H4350
CCI BR
.02" jump
2750 fps






26”

26" 1:8 McGowen
123 Scenar
Lapua 260 brass


48.3 SF

CCI BR2

3172fps




26" 1:8 Krieger
142 SMK
Lapua 260 brass
42.0 H4350
.02" jump
2805fps





-------------------------

26" 1:8.5 Dta Srs A1 OEM

Berger Hybrid 140
Lapua 260 brass


H4350
WLR primers

42.1 grains. Average 2790
42.3. Average 2805
42.5 average 2811
42.7. Average. 2817
42.9. Average. 2829
43.1. Average 2840
43.3. Average 2855
43.5. Average 2869
43.7. Average 2878
-------------------------


26" Bartlein
Berger 140gr Hybrid
Lapua 260 brass
43gr of H4350
Federal 210M primer
.002" jump
MV - 2,880fps



26” Benchmark
140 Hornady BTHP


Lake City LR brass - size and turn necks
43.0gr H4350
Winchester primers
.01" jump
2860fps



26" Rock


142SMK
SSA brass
41.8gr H4350
CCI200 Primer
.01" Jump


2818fps




-------------------------

26” 1:8.5 Bartlein 5R
R-P 243 brass
Hodgdon Superformance
FC 210 primers



123 SMK

47.9 3096 fps average
48.3 3121 fps average
48.7 3147 fps average
49.0 3144 fps average


136 Scenar L

46.7 2995 fps average
47.0 3006 fps average
47.3 3037 fps average
47.6 3065 fps average
------------------------



26” 1:8 Savage OEM
123 Amax


Lapua 260 brass
42.3gr H4350
Win LR primer
2875fps



26” 1:8 Savage OEM
140 Hornady BTHP


Lapua brass
41.7gr H4350
Win LR primer
2770fps



26” Bartlein
140 Amax


Norma brass
44.5gr RL17
3000fps




26" Benchmark
140 Berger Hybrid
Lapua 260 brass
41.7g H4350
Fed 210M
2860fps @ 12ft



28”


28" 1:8 Criterion
142gr SMK
Federal brass
43.5gr IMR7828


REM 9 1/2 LRP

.010" jump


2740fps




-------------------------


28" 1:8 Bartlein 5R


140 Amax
Lapua 260 brass
H4350
Federal Match Large Rifle Primers



42.3grs Avg: 2766 fps

42.7grs Avg: 2782 fps
43.2grs Avg: 2820 fps
43.6grs Avg: 2843 fps

44.0grs Avg: 2852 fps
44.5grs Avg: 2877 fps
44.9grs Avg: 2898 fps
45.4grs Avg: 2930 fps

-------------------------


28” Obermeyer 5R
140 SMK


Winchester 7mm-08 brass
43.8gr H4350
CCI BR2
2888fps



28" Criterion Barrel
123 SMK
Lapua 260 brass
44.5gr H4350
Fed Match primer
Velocity: 3075
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Hookturnr

X83 MONTHS
Premium Member
Sergeant
Rating: 3.1/5 this site
338 posts this site
Re: 260 loads
10/12/2014

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260 Rem Browning Abolt
260 rem brass
120 Amax
Fed. LR Match primer
H4831SC 48.8gr.
2880 in a 20" barrel 1/2MOA

260 Rem Browning Abolt
Reformed LC 308 brass
120 Amax
Fed. LR Match primer
H4831SC 47.0
2890 in a 20" barrel 1/2MOA

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Ringx

XFirst Sergeant
Rating: 3.5/5 this site
2898 posts this site
Re: 260 loads
10/13/2014
(3 votes)

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this was a list of all the H4350 loads in the 140 class from the old site..

H4350 loads
Bullet	powder	FPS	COL
123	42
123	44.5
123	42	2815	2.82
130	44	2920
139	43.5	2800
139	40.7	2800
139	43.5
139	43.5	2900	2.845
139	43.5
139	43.4	2825
140	42.3
140	42.5
140	43.1
140	41.6	2675	2.855
140	42.9	2867
142	43
142	43	2820	2.81
142	42	2780
142	43	2790	2.86
142	42.7	2840
average 139 to 142 data	42.8	2820

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Surffshr

XSergeant
Rating: 3.0/5 this site
448 posts this site
Re: 260 loads
10/16/2014

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Tagged!
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KYjonesyXSergeant
Rating: 3.1/5 this site
426 posts this site
Re: 260 loads
10/23/2014

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260 Remington

23.5" Bartlein w/ suppressor

R-P or Lapua Brass

140 Berger Hybrid

CCI LR primer

43.5 gr H4350

2.860" OAL

2820fps

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DefenseLaw

XSergeant
Rating: 3.2/5 this site
293 posts this site
Re: 260 loads
10/25/2014 Last edited 09/27/2015 by DefenseLaw

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DPMS LR260
24" Factory barrel
Lapua Brass
142 SMK
BR2 Primer
46gr H4831SC
2.810 OAL
2850 FPS/.8MOA
Syrac Gas Block turned way down

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trickyric

XSergeant
Rating: 3.2/5 this site
482 posts this site
Re: 260 loads
10/26/2014

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tag
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trailrider121XGunny Sergeant
Rating: 3.0/5 this site
888 posts this site
Re: 260 loads
10/31/2014
(1 vote)

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260 REM
24" criterion barrel with 1:8 twist.
Lapua brass
140 Hybrid
WOLF LR Primer
46.5grs. H4831 or H4831SC
.016" off the lands
COL @ 2.950"
2800 fps avg with super low ES/SD's
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DogsniperXFirst Sergeant
Rating: 2.9/5 this site
1046 posts this site
Re: 260 loads
11/10/2014

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Any reason everyone seems to use h4350 instead do imr 4350? I have tons of imr4350 and h4831. Just getting ready to get into the 260

 

[Guest]

stevepodleskiXPrivate
Rating: 0.0/5 this site
10 posts this site
Re: 260 loads
11/17/2014

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30"Krieger 8 twist .298 neck

quadlok action

Lapua 308 brass

Wolf primers

Nosler 140 CC bullet moly

45.5 gr of H4831SC

2720fps



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Mulga

XSergeant
Rating: 3.1/5 this site
221 posts this site
Re: 260 loads
11/21/2014 Last edited 03/18/2015 by Mulga

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Accuracy International AT - Maddco 26 Inch 1:8 AI profile

260Rem Lapua
140gr Berger Hybrid
Federal 210M
42.1gr AR2209 (H4350 equivalent)
Not jump fussy shot, equally as well with 0.020 or 0.010.
Velocity average 2788fps
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nexusfireXFirst Sergeant
Rating: 2.6/5 this site
1651 posts this site
Re: 260 loads
11/30/2014

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26" kreiger 1:8.5 twist
rp brass
130 gr vld
41.0 gr h4350
0.020 of lands
2820 fps
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FTRinPAXGunny Sergeant
Rating: 3.2/5 this site
704 posts this site
Re: 260 loads
12/08/2014

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TRG-22
26" Bartlein 1:8 twist
Lapua brass
140gr Berger hybrid
CCI 200 primer
COAL touching lands
H4350

42.9 - 2776
43.2 - 2804
43.5 - 2823
43.8 - 2834
44.1 - 2887
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Overwatch260XSergeant
Rating: 3.3/5 this site
217 posts this site
Re: 260 loads
12/24/2014

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Obermeyer 22" 8.4 twist / SAS suppressor

Lapua brass
139 Scenar
CCI 200
2.845" COAL (0.015 jump)
43.0 gr H4350
2870 fps

Lapua brass
130 Berger VLD
CCI 200
2.825" COAL (0.045 jump)
43.2 gr H4350
2920 fps
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Barney88PDCXGunny Sergeant
Rating: 3.5/5 this site
902 posts this site
Re: 260 loads
12/24/2014 Last edited 12/24/2014 by Barney88PDC

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26" Bartlein 1:8.5 twist, chamber cut with 0.090" freebore reamer

Lapua Brass
CCI BR2
42.3gr H4350
139 Scenar 2.835" OAL (0.010" jump)
2970 fps with just over 2,000 rounds on the barrel. Still stupid accurate. If your rifle will not shoot a 139gr Scenar with 0.010" jump in Lapua brass with 41.7 - 42.5gr of H4350 something is wrong.

Lapua Brass
CCI BR2
43.5gr H4350
130 Berger HVLD 2.880" OAL (basically mag length with alot of jump, over 0.100" IIRC)
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LRJammerXGunny Sergeant
Rating: 3.2/5 this site
793 posts this site
Re: 260 loads
12/30/2014
(1 vote)

---

H4350 is an extreme powder and doesnt get anywhere near the pressure variations with ambient temperature change. Also, H4350 just seems to produce such incredible results that nothing else seems to come close in terms of accuracy.

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dbransco

XGunny Sergeant
Rating: 3.0/5 this site
829 posts this site
Re: 260 loads
12/31/2014 Last edited 01/01/2015 by dbransco

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.260 REM
24" Bartlein, 1:8 twist w/ suppressor
140 gr. Berger Target Match Hybrid
45.2 gr. of H-4350
CCI BR2 Primer
COAL 2.922" (0.020" jumped)

Velocity: 2,906 fps
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GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
Re: 260 loads
01/05/2015

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Holy shit, that's a lot if H4350!!
---------------------------------------------
--- dbransco wrote:

.260 REM
24" Bartlein, 1:8 twist w/ suppressor
140 gr. Berger Target Match Hybrid
45.2 gr. of H-4350
CCI BR2 Primer
COAL 2.922" (0.020" jumped)

Velocity: 2,906 fps

---------------------------------------------
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Steelhead43XGunny Sergeant
Rating: 3.4/5 this site
668 posts this site
Re: 260 loads
01/12/2015

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Yea it is!
What brass?
I just started playing with hybrids, got to 44 grains and primers and brass look primo still,gonna go higher next round.
Win 243 brass, loaded 2.2 base to ogive(2.875ish)

---------------------------------------------
--- Genochrist wrote:



Holy shit, that's a lot if H4350!!
---------------------------------------------
--- dbransco wrote:

.260 REM
24" Bartlein, 1:8 twist w/ suppressor
140 gr. Berger Target Match Hybrid
45.2 gr. of H-4350
CCI BR2 Primer
COAL 2.922" (0.020" jumped)

Velocity: 2,906 fps

---------------------------------------------

---------------------------------------------
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dbransco

XGunny Sergeant
Rating: 3.0/5 this site
829 posts this site
Re: 260 loads
01/13/2015

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RP (Remington) Brass.


---------------------------------------------
--- Steelhead43 wrote:


Yea it is!
What brass?
I just started playing with hybrids, got to 44 grains and primers and brass look primo still,gonna go higher next round.
Win 243 brass, loaded 2.2 base to ogive(2.875ish)

---------------------------------------------
--- Genochrist wrote:



Holy shit, that's a lot if H4350!!
---------------------------------------------
--- dbransco wrote:

.260 REM
24" Bartlein, 1:8 twist w/ suppressor
140 gr. Berger Target Match Hybrid
45.2 gr. of H-4350
CCI BR2 Primer
COAL 2.922" (0.020" jumped)

Velocity: 2,906 fps

---------------------------------------------

---------------------------------------------

---------------------------------------------
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GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
Re: 260 loads
01/13/2015

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I wonder why it takes you almost 2 full grains more to get the same velocity as I get. 3" of barrel shouldn't make that big of a difference. I'm at the ragged edge of too hot at 43.5 on a 50 degree day.
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dbransco

XGunny Sergeant
Rating: 3.0/5 this site
829 posts this site
Re: 260 loads
01/13/2015 Last edited 01/13/2015 by dbransco

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Yeah, I don't know? I am fairly new to reloading;however, I ladder tested from 37.0 grn. up to 45.5 grn. At this upper end with the bullet jammed, I began to see slight pressure signs in the form of of the rear of the brass (headstamp) being worn or shiney. When I settled on 45.2 grn. and the bullet was jumped 0.020", the pressure signs were not present.

I don't have all my data here with me, but at 42.5 grn. and the 24" barrel the MV was 2,724 fps.

Genochrist, what is your COAL? This may also be a factor as my bullet is seated fairly long at 2.922".

Genochrist wrote: I wonder why it takes you almost 2 full grains more to get the same velocity as I get. 3" of barrel shouldn't make that big of a difference. I'm at the ragged edge of too hot at 43.5 on a 50 degree day.​

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sierracharlie338

XFirst Sergeant
Rating: 3.4/5 this site
1237 posts this site
Re: 260 loads
01/23/2015 Last edited 09/19/2015 by sierracharlie338

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Finally got one settled on for my Savage 10FP with a 26" ER Shaw barrel

Lapua Brass
130 HVLD
43.5g H4350
2.240 Base to Ogive (about .020 jump)

Avg Speed is actually about 2940 after using a better chrono. Confirmed with DOPE out to 915 so far.
ES - 19
SD - 7



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briang7511

XGunny Sergeant
Rating: 3.1/5 this site
784 posts this site
Re: 260 loads
02/01/2015

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test mule is a stiller tac 30 with a 1 in 8 bartlein at 26 in.

139gr lapua with lapua brass and fed 210m .010 off
4831sc @ 45.9gr
2800 fps
groups measure .2 at 100 yds

123gr lapua with lapua brass and fed 210m .010 off
H4350 @ 43.8gr
3010fps
groups measure .2 at 100 yds
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coldboremiracle

XFirst Sergeant
Rating: 3.3/5 this site
5616 posts this site
Re: 260 loads
02/01/2015

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140 Barnes MB
43.5 H4350
DTA Factory barrel (26")
2930FPS

Spanks everything else I've tried.
Same exact load and COAL with a Berger was 2850.
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Emouse

XSergeant
Rating: 3.1/5 this site
479 posts this site
Re: 260 loads
02/06/2015

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LRJammer wrote:
H4350 is an extreme powder and doesnt get anywhere near the pressure variations with ambient temperature change. Also, H4350 just seems to produce such incredible results that nothing else seems to come close in terms of accuracy.​

You tried RL17?
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jpelzerXCorporal
Rating: 0.0/5 this site
53 posts this site
Re: 260 loads
02/17/2015

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Tag

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LRJammerXGunny Sergeant
Rating: 3.2/5 this site
793 posts this site
Re: 260 loads
02/20/2015

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Emouse wrote:

LRJammer wrote:
H4350 is an extreme powder and doesnt get anywhere near the pressure variations with ambient temperature change. Also, H4350 just seems to produce such incredible results that nothing else seems to come close in terms of accuracy.​

You tried RL17?​

Just recently worked up a load for Re-17. Seems to do quite well. Certainly well enough to use in colder weather so I can conserve my supply of H4350. It seems to get harder to get every year.

 

[Guest]

HannibalsnipesXSergeant
Rating: 0.0/5 this site
168 posts this site
Re: 260 loads
02/21/2015

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Tag~



Also, there was a really good topic section on the old site specifically for people who were shooting and developing loads for the Sako TRG 22 Remington 260. Not necessarily the re-barreled versions, but mostly the 200 that were factory. Anyone know if that is around somewhere? Thanks

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GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
Re: 260 loads
03/19/2015

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I don't know about these other guys but I didn't happen to use H4350 by accident or just by listening to others. I tried a few powders and a few bullets and a few primers to get where I am at. H4831sc I'd the one I tried and while it was about as accurate as H4350 it never did get the same speed. I talking a minimum of 5 , 5 shot groups averages. It does work for some guys and for others it doesn't. That's why we see all different powders in this thread, RL17, 19, H4350, H4831... Not ever gun likes the same diet.
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GregLangeliusXFirst Sergeant
Rating: 3.4/5 this site
5017 posts this site
Re: 260 loads
03/20/2015 Last edited 03/20/2015 by GregLangelius

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I have a L-W 28" 1:8" LW-50 Savage varmint weight profile .260 Rem Barrel that I will be reinstalling on my original Ghost Dancer rifle this Spring. When last fired, it liked the 142SMK about .010" off lands over 43.8gr and 43.9gr of H-4350. Brass is necked down Win 7-08 with CCI BR-2's.

I will redo the load development from scratch for the HDY 140, SRA 142, and HDY 95. The above load was a very quick redevelopment of the load the rifle used with its original Savage Factory 24" 1:8" barrel. The original 24" barrel load was the final selection from loads with Ramshot Hunter, H-4831SC, and H-4350.

I had really liked the H-4831SC development chapter, because it achieved its excellent accuracy with minimal pressure signs. But velocities were off quite a bit. This was inconsequential until I started shooting 1000yd with the original 24" barrel.

I never revisited H-4831SC in the longer barrel, and I think that now would be a good time to try that.

At the time the 24" barrel was in use, I got to 50gr of H-4831SC (C*) under the 142SMK (Pressure testing, mostly) without alarming pressure signs. I'd love to see if the 28" barrel can maintain the moderate pressure signs at that charge level, and whether good accuracy can be found with it.

My experience with H-4831SC was that once I was on an accuracy node, it was very accurate. I just figured (probably unnecessarily) that I needed higher velocities than I was getting.

Disclaimer: This barrel is a custom made for me by L-W specifying a SAAMI chamber, which is generally a tad more forgiving than a match chamber with a narrower neck.

It is strongly advised that one set of load data developed for a specific barrel is NOT applicable to any other barrel, and that attempting to ignore this advice has the potential for compromising safety.

Greg
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GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
Re: 260 loads
03/20/2015

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Greg, your result mirror mine, and most others I talk to about the 260. H4831 is accurate but not as speedy as H4350
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CoolhandSpook

XSergeant
Rating: 3.2/5 this site
451 posts this site
Re: 260 loads
03/22/2015

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All loads shot through a 24" Rock Creek bbl plumbed with Gradous' .260 reamer for Lapua brass.



Lapua Brass

CCI 200 Primers



130 gr HVLD

44.5 gr H4350

2.202" BTO (.010" off the lands)

3000 fps based on Balistic AE and dope matched to 960 yds.



140 gr AMax

42.5 gr H4350

2.188" BTO (.040" off the lands)

2850 fps



140 gr HVLD

42.4 gr H4350

2.175" BTO (.060 off the lands)



95 gr VMax

41.0 gr Varget

2.195" BTO (.010 off the lands)

3225 fps

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GregLangeliusXFirst Sergeant
Rating: 3.4/5 this site
5017 posts this site
Re: 260 loads
03/23/2015

---

Much thanks, especially for the 95gr/Varget load.

Greg
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sierracharlie338

XFirst Sergeant
Rating: 3.4/5 this site
1237 posts this site
Re: 260 loads
03/25/2015

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Are you shitting me?!?!?! 3000 FPS that is SMOKING!!!

CoolhandSpook wrote:
All loads shot through a 24" Rock Creek bbl plumbed with Gradous' .260 reamer for Lapua brass.



Lapua Brass

CCI 200 Primers



130 gr HVLD

44.5 gr H4350

2.202" BTO (.010" off the lands)

3000 fps based on Balistic AE and dope matched to 960 yds.



140 gr AMax

42.5 gr H4350

2.188" BTO (.040" off the lands)

2850 fps



140 gr HVLD

42.4 gr H4350

2.175" BTO (.060 off the lands)



95 gr VMax

41.0 gr Varget

2.195" BTO (.010 off the lands)

3225 fps​

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CoolhandSpook

XSergeant
Rating: 3.2/5 this site
451 posts this site
Re: 260 loads
03/26/2015

---

sierracharlie338 wrote: Are you shitting me?!?!?! 3000 FPS that is SMOKING!!!​

That's not the first time I've heard that... Like I said though, I don't have a chrony or shoot with many guys that do, so 3000 fps is my best guess based on a G7 BC= 0.282 and nearly spot on dope out to 960 yds (960: Ballistic= 7.06 Mils / Actual= 7.1-7.2 Mils). I've seen a few others report similar velocities out from similar setups/loads, a couple of whom I have no reason to doubt, like Pat Sinclair. That's not to say my actual velocity couldn't be off, but I don't think it'd be by much. I don't consider it a hot load either... No swipe, no flow, no stiff bolt, year round. The only time I've ever had a stiff bolt lift with this load was during a shoot in some pretty heavy rain with no cover. Brass was wet, gun was wet, lift got stiff. Just cracked my 3rd box of Lapua brass, getting 6 loads before it gets too tight to chamber. I only chamfer the case mouth and neck size, no trimming. I'll probably get my 200 old cases annealed and run them through the body die to squeeze a few more loads out of 'em.

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sierracharlie338

XFirst Sergeant
Rating: 3.4/5 this site
1237 posts this site
Re: 260 loads
03/28/2015

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Its not that I don't believe you, that is just awesome! I am running Lapua brass and neck size only as well. I may tweak mine a little more but I am close to where I want to be so I am not sure.
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padom

XFirst Sergeant
Rating: 3.8/5 this site
3043 posts this site
Re: 260 loads
04/03/2015 Last edited 01/21/2016 by padom

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41.8g H4350
139L Scenar
Lapua brass
210M
2.835" COAL (0.01" off lands)
2815 es8 sd6

Bartlein 26" barrel

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Militarybuilt

XSergeant
Rating: 0.0/5 this site
221 posts this site
Re: 260 loads
04/05/2015

---

So I had a little bad luck with some loads. This is a brand new AR10 I built in .260 with a Bergara barrel. I started load development with H4831sc and IMR4064 because that is all I could get my hands on. I started at 44, 45, and 46 grains of 4831sc and 35 and 36 grains of 4064 loaded with a 140gn VLD to max mag length. This is a gas gun so I know it will act a little different but even at 44gns I had pressure signs, I am using a SLR adjustable gas block but all the loads cycled fine. I have now acquired a few pounds of H4350 so I will start load development with that. As you can see in the picture the pressure was cratered primers. I did shoot more than I probably should have but I didn't even touch the 46gns of 4831sc. You can see the load data on the lid of the box.

These were all suppressed with a SDN-6.

Does anyone have any gas gun loads? Thanks.

[/IMG]

[/IMG]

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ThebellyXGunny Sergeant
Rating: 3.2/5 this site
632 posts this site
Re: 260 loads
04/06/2015

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All loads were shot from a 22" Criterion barrel with their match chamber.

All brass is LCLR12 that has been necked down. No neck turning was done. It fed and functioned just fine.
All bullets were 123 Nosler custom Comp. I get them extremely cheap. They were loaded to 2.371" base-to-ogive
All primers were Federal 210, non match.
The powder was H4350 in the following charges:

41.5 gr
2788 fps avg
ES 18
SD 7

42.0 gr
2821 fps avg
ES 22
SD 9

42.5 gr
2853 fps avg
ES 21
SD 8

43.0 gr
2875 fps avg
ES 36
SD16
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ThebellyXGunny Sergeant
Rating: 3.2/5 this site
632 posts this site
Re: 260 loads
04/06/2015

---

All loads were shot from a 22" Criterion barrel with their match chamber.

All brass is LCLR12 that has been necked down. No neck turning was done. It fed and functioned just fine.
All bullets were 123 Nosler custom Comp. I get them extremely cheap. They were loaded to 2.371" base-to-ogive
All primers were Federal 210, non match.
The powder was VARGET in the following charges:

34.5 gr
2583 fps avg
ES 11
SD 6

35.0 gr
2611 fps avg
ES 17
SD 6

35.5 gr
2638 fps avg
ES 11
SD 4

36.0 gr
2677 fps avg
ES 19
SD 9
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ReaperDriverXGunny Sergeant
Rating: 3.2/5 this site
930 posts this site
Re: 260 loads
05/22/2015 Last edited 05/22/2015 by ReaperDriver

---

For those guys who neck size - what size neck bushing for Redding Comp dies are you using with Lapua Brass? I'm about to get a .260 BBL for an AI AT and am in the process of picking up all the components.

If you had to choose ONE powder - what would it be? H4350, H4831SC, other? I need something temp insensitive as the temps through the year vary quite a lot (Vegas) going from the 30s and 40s in the winter to 110 in the summer.

Also, I found some H-4831 but not the SC and am tempted to get it. If weighing the charges from a CM1500 or measuring on a scale, are the longer grains going to be an issue with consistency?



Thanks in advance!

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sierracharlie338

XFirst Sergeant
Rating: 3.4/5 this site
1237 posts this site
Re: 260 loads
05/25/2015

---

@ReaperDriver I am running a .292 redding neck bushing and have been having great results so far. I had a little help prior to testing so can't say I found it out on my own. I started running H4350 and won't be changing anytime soon even if I have a to buy a pound at a time. Im down in Texas and our temp ranges are about the same as yalls.
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JGB02

XFirst Sergeant
Rating: 3.4/5 this site
1841 posts this site
Re: 260 loads
05/31/2015

---

Tikka CTR, 20" barrel, w/ TB 30 P1

140 AMAX
43.5gr H4350
Lapua brass
WLR
2.810" COL

1/2 MOA 5 shot group at 100 meters

~ 2670 FPS. ES ~ 10

There were no overpressure signs, but this is above book max. Use extreme care if you have this rifle and go searching for the next higher node to get more speed. I think this is about what you can expect to get with a 20" barrel unless you use RL-17.

NOTE: if you use RL-17 with this rifle and get more speed, pls send me a PM with your load.

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CoolhandSpook

XSergeant
Rating: 3.2/5 this site
451 posts this site
Re: 260 loads
05/31/2015 Last edited 05/31/2015 by CoolhandSpook

---

CoolhandSpook wrote:
All loads shot through a 24" Rock Creek bbl plumbed with Gradous' .260 reamer for Lapua brass.



Lapua Brass

CCI 200 Primers



130 gr HVLD

44.5 gr H4350

2.202" BTO (.010" off the lands)

3000 fps based on Balistic AE and dope matched to 960 yds.



140 gr AMax

42.5 gr H4350

2.188" BTO (.040" off the lands)

2850 fps​

I was able to shoot across a friend's MagnetoSpeed yesterday. Here are the average velocities for 5 shots of each load. 1200+ rounds on the barrel.



130 gr HVLD: 2928 fps SD: 11

140 gr AMAX: 2796 fps SD: 9

 

[Guest]

CoolhandSpook

XSergeant
Rating: 3.2/5 this site
451 posts this site
Re: 260 loads
05/31/2015

---

ReaperDriver wrote:
For those guys who neck size - what size neck bushing for Redding Comp dies are you using with Lapua Brass? I'm about to get a .260 BBL for an AI AT and am in the process of picking up all the components.​

I use a .292 bushing for .002 neck tension with Lapua brass.

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clrems77XFirst Sergeant
Rating: 3.1/5 this site
1226 posts this site
Re: 260 loads
06/01/2015

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Lapua brass

Fed 210M primers

Berger 140 hybrid

40 grains H-4350

Shot out of a 27" Bartlett barrel.

Avg speed 2720

SD-5 / ES-13

under .5 inch groups



Same load as above but with 42 grains

Avg Speed 2828

SD-6 / ES-14

under .5 inch groups

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tacticalpanda

X48 MONTHS
Premium Member
Sergeant
Rating: 3.1/5 this site
395 posts this site
Re: 260 loads
06/09/2015

---

Savage LRP 26" barrel

.260 Rem Lapua Brass

140g A-Max

2.305 from Ogive

.005 off the lands

CCI #200 Primers

H4350 43.1 grains

AVG 2821 FPS

ES 29

SD 11.1



________________________________________________________________________________________



Savage LRP 26" barrel

.260 Rem Lapua Brass

140g A-Max

2.305 from Ogive

.005 off the lands

CCI #200 Primers

H4350 43.4 grains

AVG 2863 FPS

ES 24

SD 7.9

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holdstillplease

XSergeant
Rating: 3.1/5 this site
292 posts this site
Re: 260 loads
06/10/2015 Last edited 06/10/2015 by holdstillplease

---

Factory 26" Savage LRP bull barrel, 1-8" twist

Lapua brass

CCI BR2 primer

Hornady BTHP Match 140gr

2.870" COAL (max magazine length, also right at the lands)

45.7gr H4831SC

2833 fps avg.

5 ES

2.64 SD

0.14" best group @ 100 yards

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ReaperDriverXGunny Sergeant
Rating: 3.2/5 this site
930 posts this site
Re: 260 loads
06/21/2015

---

26" Gradous Bartlein on an AI AT

.260 Lapua brass

.291 bushing neck-sized

Federal 210 primers

-----------------------

IMR4350 loads

• 42.5 gr - Berger 140 hybrids, 2.90 COAL (just in contact with the lands) - 2820 fps, SD 7, 0.4" 5-shot group at 100 yds
• 42.5 gr - Lapua 139 Scenar, 2.85 COAL (just in contact with the lands) - 2870 fps, SD 4, 0.35" 5-shot group at 100 yds

Note: both of the above performed very well at 1000 and 1500 yds. Held < 1/2 MOA vertical



H4831SC Loads

• 46.2 gr - Berger 140 hybrids, 2.90 COAL (just in contact with the lands) - 2810 fps, SD 12, 0.45" 5-shot group at 100 yds
• 46.2 gr - Lapua 139 Scenar, 2.85 COAL (just in contact with the lands) - 2830 fps, SD 15, 0.5" 5-shot group at 100 yds
• 46.8 gr - 142 Sierra MK, 2.83 COAL - 2870 fps, 0.5" 5-shot group at 100 yds
• 46.2 gr - 140 Nosler CC, 2.78 COAL - 2800 fps, SD 20, .65" 5-shot group at 100 yds

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105gr

XSergeant
Rating: 3.0/5 this site
238 posts this site
Re: 260 loads
06/26/2015

---

I'm planning on rebarreling my 1976 R700 BDL to 260. I have been told Hart barrels will lap/true actions when they install barrels(?). I was thinking atleast a 28". What twist? Would 9 be enough or does it need to be an 8 for the 140gr pills?
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lashlaroe

X52 MONTHS
Premium Member
First Sergeant
Rating: 3.5/5 this site
3295 posts this site
Re: 260 loads
06/26/2015

---

Most are using 8 or 8.5 for .260 to shoot everything from 123 to 142. My 8 twist Bartlien launches them all very well.

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MachoKingXSergeant
Rating: 3.1/5 this site
393 posts this site
Re: 260 loads
07/07/2015

---

Am I tempting fate by loading 142gr ABLR to .005 off the lands? I notice most every one of these loads is .010.

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Ringx

XFirst Sergeant
Rating: 3.5/5 this site
2898 posts this site
Re: 260 loads
07/16/2015 Last edited 07/16/2015 by Ringx

---

wanted to test the new Reloader 26 powder, its temp stable.

this was the QL data

22" Broughton 1/8
140 BTHP hornady "HBN" coated
308 lapua brass necked down
COL 2.810
[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i.minus.com\/j3oYiGpxSvauQ.png"}[/IMG2]

this was magnetospeed data of my test..

44 1 2587 ft/s
44.5 2 2636 ft/s
45 3 2683 ft/s
45.5 4 2695 ft/s
46 5 2740 ft/s
46.5 6 2755 ft/s
47 7 2781 ft/s
47.5 8 2811 ft/s
48 9 2818 ft/s
48.5 10 2873 ft/s


low is bottom right, high is top left

[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i.minus.com\/jY7yGxudt1MLk.jpg"}[/IMG2]

zoom in on the high

[IMG2=JSON]{"data-align":"none","data-size":"full","src":"http:\/\/i.minus.com\/jbptUUU8IK6dtq.jpg"}[/IMG2]


this load is 100fps faster then my H4350 load, and the primers look better
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Ringx

XFirst Sergeant
Rating: 3.5/5 this site
2898 posts this site
Re: 260 loads
07/22/2015

---

^
1st round of testing starting at 46.7gr up to 47.3 sucked ass....
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Cornholeo

XGunny Sergeant
Rating: 3.1/5 this site
516 posts this site
Re: 260 loads
08/13/2015 Last edited 01/28/2016 by Cornholeo

---

Tikka CTR 20' 1:8 twist

43.4gr H4350 / 140 gr Berger VLD hunting/ CCI BR2/ 2.900 COAL/ 2683fps avg .51" 10 shot group

42.5gr H4350 / 140 gr Berger VLD hunting/ CCI BR2/ 2.790 COAL/ 2660fps avg .33" 3 shot group



43.0gr H4350 / 140 gr AMAX / CCI BR2 / 2.900 COAL / SD. 15.6 /2667fps avg. .303” 3 shot group

43.2gr H4350 / 140 gr AMAX / CCI BR2 / 2.900 COAL / SD. 5.25 / 2673fps avg.

43.0gr H4350 / 140gr AMAX / CCI BR2 / 2.820 COAL / SD 16.57 / 2673 fps avg .203” 5 shot

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Ringx

XFirst Sergeant
Rating: 3.5/5 this site
2898 posts this site
Re: 260 loads
08/18/2015

---

Ringx wrote: ^
1st round of testing starting at 46.7gr up to 47.3 sucked ass....​

2nd round testing, 45gr -> 46.5 all 1 to 1.75moa

crap tastic...

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Militarybuilt

XSergeant
Rating: 0.0/5 this site
221 posts this site
Re: 260 loads
08/29/2015

---

Has anybody done any development in an AR? I found Berger 140s not that great. Now the 123gn AMAXs are doing much better. I will get all my data in here when I get a chance.
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[Guest]

SWATRETXPrivate
Rating: 0.0/5 this site
1 posts this site
Re: 260 loads
09/04/2015

---

Tag, where's the subscribe tool? Just got my CTR. Have a 100 rds of Fed GMM for brass and H4831SC. Has anyone used the

Hornady 129gr SST?

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Bisley

XGunny Sergeant
Rating: 2.9/5 this site
959 posts this site
Re: 260 loads
09/04/2015

---

Primer: CCI Large Rifle 200
Brass: Lapua .260 Rem
Brass trim length: 2.035
Powder: VV N550
Charge: 39.5gr
Bullet: Lapua Scenar 139gr
COAL: 2.840
OAL to ogive: 2.290
Distance from lands: -0.010
Velocity: 2725 fps

VV N550:
38.5 gives 2639 fps
39.0 gives 2672 fps
39.5 gives 2725 fps
40.0 gives 2733 fps
40.5 gives 2786 fps
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Militarybuilt

XSergeant
Rating: 0.0/5 this site
221 posts this site
Re: 260 loads
09/06/2015

---

Here's from my last rang etrip.

Mega MATEN with T-box 20" 1:8 barrel. With SDN-6 suppressor.

Nosler brass
FGMM primer
H4350--41.5gns
120gn A-MAX

2592
2681
2690
2685
2685

H4350--45gns
120gn A-MAX

2657
2924
2910
2920
2891

I don't know why the first round is always so much slower, I'm using the caldwell chrono so take that for what it's worth. I will be doing more tomorrow.
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craigosXGunny Sergeant
Rating: 3.2/5 this site
979 posts this site
Re: 260 loads
09/07/2015

---

When I shoot suppressed I see the same, and the first 3-4 shots have high SD (10-15) and lower velocity . But then the 5th to 10th shot my SD drops to like 3-4 and velocity increases slightly.

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Militarybuilt

XSergeant
Rating: 0.0/5 this site
221 posts this site
Re: 260 loads
09/11/2015 Last edited 09/11/2015 by Militarybuilt

---

Ah I got ya. This damn AR destroys brass, this may end up getting re-barreled...
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rope71XSergeant
Rating: 3.2/5 this site
173 posts this site
Re: 260 loads
10/04/2015

---

Loading some 139 Scenars with H4831sc and some 7977. Will update with data once its completed.

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Cornholeo

XGunny Sergeant
Rating: 3.1/5 this site
516 posts this site
Re: 260 loads
10/04/2015

---

CTR Loads:

All loads using Lapua brass neck sized.


43.4gr H4350

140 gr Berger VLD hunting

CCI BR2

2.900 COAL

2683fps avg




42.8gr H4350

140 gr Hornady HPBT

CCI BR2

2.860 COAL

2680fps avg

The 140gr HPBT Are the least expensive of the 3 and are at least equal to the Bergers in accuracy.



43.0gr H4350

140gr AMAX

CCI BR2

2.820 COAL

SD 16.57

2673 fps avg



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ThePinkMist

XSergeant
Rating: 2.9/5 this site
103 posts this site
Re: 260 loads
10/16/2015

---

Does anyone have any loads using Reloader 17?

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Meplat

XFirst Sergeant
Rating: 3.5/5 this site
2017 posts this site
Re: 260 loads
11/03/2015 Last edited 11/03/2015 by Meplat

---

Bartlein 22" 1:8 twist 5r barrel, M5 Mausingfield build.



Hornady 140gr HPBT @ 2.810" COAL (15-20 thou jump)

Lapua brass neck turned to .015 thickness (.294 loaded round, .292 neck bushing)

43.8gr H4350

CCI 200



MV: 2853 fps (Magnetospeed)

ES: mid/high 20's

SD 8-10fps



Accuracy right around 1/2 MOA at distance so far. I have only shot it at 100 and 250. I plan to explore further this week/weekend. I loaded up as far as 44.5gr and was not getting any signs of pressure (round primer corners, no cratering, no ejector slot stamp). This is considerably hotter and faster than my last .260 and I think I may have to bump down a node for the summer.

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briang7511

XGunny Sergeant
Rating: 3.1/5 this site
784 posts this site
Re: 260 loads
11/03/2015

---

23in shilen barrel 4 groove

RL17

43.4 gr 139 scenar @3000fps groups measure .3

.010off

42.8 was just as accurate @2960fps

43.8 groups opened up a little @3050fps





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SHahhshootXGunny Sergeant
Rating: 3.3/5 this site
853 posts this site
Re: 260 loads
11/12/2015

---

All,



Found a great load for my .260 Rem and thought I'd share. Perhaps it will be a forgiving one and work in many other .260's.



As always, work up to the listed charge to make sure it's safe in YOUR rifle.



-Lapua Brass



-GM210M



-43.0GR H4350

130 Berger AR Hybrid

2.289 BTO

I neck turn to 6 thousands total diametrical clearance after a bullet is seated but it doesn't matter, this load shoots lights out.



Over 2,900 fps in my 24" Krieger.

Groups at distance are extremely good as well.

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105gr

XSergeant
Rating: 3.0/5 this site
238 posts this site
Re: 260 loads
11/13/2015

---

Kreist!...Is that 100yds?

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SHahhshootXGunny Sergeant
Rating: 3.3/5 this site
853 posts this site
Re: 260 loads
11/16/2015 Last edited 11/16/2015 by SHahhshoot

---

105gr wrote:
Kreist!...Is that 100yds?​

Yep that's 4 shots from 100! 103 actually as I was angled left of the target from where I was shooting. Measured .119 MOA on OnTarget. I have tried a multitude of loads with the .260 including H/IMR 4350, Varget, and others, and many bullets including 139/136L/123 Scenar, 140 Berger VLD and Hybrid, Barnes Match Burner 140's, SMK's, AMAX 140's, and some other boutique boolit companies, but these 130 bergers over a stout load of H4350 seem to be the best shooting rounds I've sent through mine. The best thing about this load is it performs exceptionally well at 1000 yards (some of the 123 loads were extremely accurate out to 800 or so but not as much at 1000. This one seems to be the sweet spot).

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bscddXPrivate
Rating: 0.0/5 this site
12 posts this site
Re: 260 loads
12/11/2015

---

saving

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hewlett260XGunny Sergeant
Rating: 3.2/5 this site
743 posts this site
Re: 260 loads
01/03/2016 Last edited 09/11/2016 by hewlett260

---

Might as well throw these in: Rifle used AW w/ 22.5" Bartlien 1:8 so here goes;

Lapua case
Federal 210 primer
Hornady 140 hpbt match/Berger 140 Hybrid
2.900 o.a.l.
H4350 @ 41.5 grains
2725/ 2720 respective to bullet listed above
S/D on both is 9.8

Lapua
210
Berger 140 Hybrid
2.900
H4350 @ 42.5
2735 fps
S/D 8.4

Lapua
210
Hornady 140 Match
2.900
AA4350 @ 42.8
2733 fps,
S/D 9.4

Had to edit, barrel is half way through its life span so I re-chrono'd my go to loads.

 

[Guest]

DogsniperXFirst Sergeant
Rating: 2.9/5 this site
1046 posts this site
Re: 260 loads
02/15/2016 Last edited 02/15/2016 by Dogsniper

---

24" bartlien 1-8.5 twist
Sierra 142 smk
46.5 gr. imr4350
Sd. 10.2
2813 mv.
Coal 2.86
5 shot group .27@100
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ZOFISXFirst Sergeant
Rating: 3.2/5 this site
1512 posts this site
Re: 260 loads
03/01/2016 Last edited 03/01/2016 by ZOFIS

---

140 Berger Match Hybrid Target
H4350
43.4
Lapua
CCI200
28" Kreiger 1:8
2.895" OAL
avg: 2980
sd: 10
magnetospeed

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bas402

XFirst Sergeant
Rating: 3.4/5 this site
1546 posts this site
Re: 260 loads
03/05/2016 Last edited 03/05/2016 by bas402

---

26" Chanlynn 1:8.5
139gr Scenars pointed
Lapua cases (6) cycles on brass
CCI BR2
2.240" BTO
47gr Superformance
3072
11 ES
5 SD
Magneto speed and verified out to 1200

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mercracingXGunny Sergeant
Rating: 3.1/5 this site
704 posts this site
Re: 260 loads
03/12/2016

---

Where are you guys finding load data for H 4350? Neither of the books I have have it listed, when I went on their website their max load was 42.0 grains

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FTRinPAXGunny Sergeant
Rating: 3.2/5 this site
704 posts this site
Re: 260 loads
03/12/2016

---

http://www.hodgdonreloading.com/data/rifle

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mercracingXGunny Sergeant
Rating: 3.1/5 this site
704 posts this site
Re: 260 loads
03/12/2016

---

Yup, already been there. The max load they are listing with a 140gr bullet is 42.0gr or H4350. Almost every load for H4350 is decently above 42.0gr so I was wondering if it was listed in a book like that or if they worked up past what the manufacturer recommended.

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GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
Re: 260 loads
03/12/2016

---

I don't know about the rest of these guys but I assume they do like I do and find what our own safe limit is and find an accuracy node under that
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FTRinPAXGunny Sergeant
Rating: 3.2/5 this site
704 posts this site
Re: 260 loads
03/13/2016

---

^^^ What he said. Work your way up slowly, looking for pressure signs. Flattened primers, ejector marks, stiff bolt lift, ..... Every rifle has it's own limitations, so try and find yours and stay well below it.

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sdintowaXPrivate
Rating: 3.1/5 this site
22 posts this site
Re: 260 loads
03/15/2016 Last edited 03/15/2016 by sdintowa

---

My 260 is very close to yours =SHahhshoot
24" bartlein/ rem 700
43.2 h4350
Cci br
130 hybrids
2975 fps
1/4 moa at 100 and just over 1/2 at 1K without trying.
Found that the 130's don't care too much about seating depth either, very easy to tune!!
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GhengisAhn175XFirst Sergeant
Rating: 3.4/5 this site
2528 posts this site
Re: 260 loads
04/01/2016 Last edited 04/10/2016 by GhengisAhn175

---

260 Remington

Bullet: Hornady ELd-M 140gr
Powder: H4350
Primer: federal 210M
Brass: lapua

30 thousandths off lands
AVG MV: 2743 /// 2800 fps now after barrel broke in (130 rounds)
ES: 11
SD: 3.7
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Meplat

XFirst Sergeant
Rating: 3.5/5 this site
2017 posts this site
Re: 260 loads
04/07/2016 Last edited 04/10/2016 by Meplat

---

.260 Remington Initial testing with the ELD's..
22" Bartlein 1:8 5R

Hornady 143 ELD-X
H4350- 43.0gr
CCI 200
Lapua .260 brass

0.030" Jump

2754fps Avg
2fps ES (5 shots)

eta2: Shot 15 more over Magnetospeed:

2757fps Avg

7fps SD



ETA: Today at 300yd this load shot about 3/4" vertical, and a little over 1" horizontal (not too concerned there, wind was a little gusty/variable). Time to mass produce this shit.

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rustys13XPrivate
Rating: 3.0/5 this site
6 posts this site
Re: 260 loads
04/07/2016

---

Tagging in can't find the subscribe option on my phone.

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Ringx

XFirst Sergeant
Rating: 3.5/5 this site
2898 posts this site
Re: 260 loads
05/09/2016

---

123 Amax with AR-Comp load data
AR comp will work with light bullets, but sucks with 140's

link, if pic dont show...
app.box.com/s/04tyk9j4xqqtwdhedwjxj7cq3jto8759

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LR1845XPrivate
Rating: 3.0/5 this site
16 posts this site
Re: 260 loads
05/15/2016

---

surgeon 591 24" krieger...tacmatch reamer .295 neck .098 free bore

fully prep'd lapua brass... .290 sized .293 loaded neck

43.7g RL-17

CCI 200

130g berger hybrid .025 off...COAL 2.833...BTO 2.235

3046-3052fps...shot 10 more(15 total)over the magneto speed to verify the ES...second 5 8fps ES...last 5 7fps ES...barrel has gained about 20fps second from first OCW to 506 rounds

groups in the low 3s at 100yds measured outside edge to outside edge

same as above with 43.1g RL-17 shoots equally as well with a 16fps ES....2982-2998fps 5 shot over magneto speed...groups in the mid to high 3s at 100yds



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Trx498rXSergeant
Rating: 3.0/5 this site
347 posts this site
Re: 260 loads
05/21/2016

---

Anyone found a good load for the hornady 140 eld match bullets? I just picked up a box gonna try some in my 260

 

[Guest]

17874XGunny Sergeant
Rating: 0.0/5 this site
606 posts this site
Re: 260 loads
05/23/2016

---

Savage model 10 with 26" Shilen (Ratchet rifled) (Tactical match reamer I think)

• Berger 140 VLD seated .060 off lands
• Federal GMM .308 brass sized down to .260, necks turned to .014
• 42.5 grains of H4350 ( I start to see pressure at 43.5 in hot weather)
• CCI standard large rifle primers

This load gave me a SD of 6 with an average velocity of 2853 fps. Gave me a 7 inch vertical spread at 1K.

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craigosXGunny Sergeant
Rating: 3.2/5 this site
979 posts this site
Re: 260 loads
05/27/2016

---

17874 wrote:
Savage model 10 with 26" Shilen (Ratchet rifled) (Tactical match reamer I think)

• Berger 140 VLD seated .060 off lands
• Federal GMM .308 brass sized down to .260, necks turned to .014
• 42.5 grains of H4350 ( I start to see pressure at 43.5 in hot weather)
• CCI standard large rifle primers

This load gave me a SD of 6 with an average velocity of 2853 fps. Gave me a 7 inch vertical spread at 1K.​

great to see a great load not need F210M unobtainiums

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Tonyw15

XSergeant
Rating: 3.0/5 this site
265 posts this site
Re: 260 loads
06/20/2016

---

Anyone tried RL15 with the 130 VLD?

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woodcr24XPrivate
Rating: 0.0/5 this site
6 posts this site
Re: 260 loads
07/12/2016

---

Savage LA, 27.25" 1:8 (barrel maker unknown)

43.3 grains H4350

CCI 200 Large Rifle primers

140 Amax and Berger Hunting VLD @ 2930 fps

Lapua and Nosler brass

2.860" COAL



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NHPiperXSergeant
Rating: 0.0/5 this site
306 posts this site
Re: 260 loads
07/22/2016 Last edited 07/22/2016 by NHPiper

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Rifle: Trued Rem700, 24" Bartlein, 1-8 twist in a KRG X-Ray chassis

Rifle is chambered in .260 Lapua versus .260 Remington, so it has a slightly tighter chamber.

140 Hornady ELDs
Lapua Brass
Fed 210 non-match primers
43.5gr H4350
+0.03 jump to lands

1/2 MOA easy, average velocity 2820 fps with a SD of 11.

*did not sort brass or bullets in this load for weight or bearing surface

Still playing with the Berger 140 VLDs. I think they will only want a +0.01 jump with same powder charge.

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steinmasterXSergeant
Rating: 3.4/5 this site
488 posts this site
Re: 260 loads
08/09/2016 Last edited 08/09/2016 by steinmaster

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Is 2,820 FPS too fast for .260 Rem and 142 grain SMK's (too fast barrel wear)?

I completed load dev on my new (re-barreled) Brux .260 Rem barrel. I'm getting no pressure signs, even in 90 degree heat. My velocity is 2,820 FPS with a 2 SD. I'm getting a 2" vertical spread @ 600 yards for 10 rounds. With this velocity, am I going to be burning out my barrel significantly faster than a lower node? Any thoughts? My lower node is 41.7 grains @ 2,760 FPS. Here is the load details:

142 SMK jumped .010" to lands

Lapua Brass and CCI200 primers

42.9 grains H4350

24" Brux 1:8 twist

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Birdhunter757

XCorporal
Rating: 0.0/5 this site
51 posts this site
Re: 260 loads
08/10/2016 Last edited 08/10/2016 by Birdhunter757

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"Is 2,820 FPS too fast for .260 Rem and 142 grain SMK's (too fast barrel wear)?

I completed load dev on my new (re-barreled) Brux .260 Rem barrel. I'm getting no pressure signs, even in 90 degree heat. My velocity is 2,820 FPS with a 2 SD. I'm getting a 2" vertical spread @ 600 yards for 10 rounds. With this velocity, am I going to be burning out my barrel significantly faster than a lower node? Any thoughts? My lower node is 41.7 grains @ 2,760 FPS. Here is the load details:

142 SMK jumped .010" to lands

Lapua Brass and CCI200 primers

42.9 grains H4350

24" Brux 1:8 twist"



Depends on how hard you run it and how far you want to shoot. I pull mine off between 2100 - 2400 rounds. I had one that only went 1800 rounds before it gave up. I've had 8 barrels between 2 match rifles, Run hard! You are at a good speed for that bullet and you should have good barrel life. You have to be realistic in what you expect out of a barrel and the accuracy and speed over its life. For me, once my speed decays below 60fps or it wont hold 1/2 MOA or better at 100 yards it comes off.

My Load:

43.5 H4350

Tula primers

Lapua Brass

142 SMK

1:8 Bartlein and 1;825 Proof Barrels

.090 Freebore, My reamer, set up for Lapua Brass and 142's

2870fps lab radar and magneto speed

.015 off the lands, set it and shoot for the life of the barrel.

SD 5, ES 12

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keith5579XCorporal
Rating: 3.1/5 this site
75 posts this site
Re: 260 loads
08/16/2016

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130 hybrids
Lapua brass
Fed 210M
2.865" OAL
26" Bartlein 1:8 twist
42.6 gr H4350 gives excellent accuracy and 2865 fps.

Not sure what reamer was used but the 140 berger hybrids or VLD's wouldn't shoot.

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bodywerksXFirst Sergeant
Rating: 3.0/5 this site
1665 posts this site
Re: 260 loads
08/28/2016

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My go to has been:
Lapua
Fed 210m
140amax
43.2 h4350
Loaded to 2.850
2925fps out of a 26" kreiger.

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MachoKingXSergeant
Rating: 3.1/5 this site
393 posts this site
Re: 260 loads
09/11/2016 Last edited 09/12/2016 by MachoKing

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Barnes headstamped brass
143gr ELD-X seated 0.60 from lands 2.860 COAL
Fed GMM primers
IMR 4451 41.5gr
Av MV 2670 fps
Savage Model 11 22" barrel 1 in 8 twist w/APA micro bastard brake and a Boyd's thumbhole stock.
1/2 MOA at 100. Rifle shoots better than I can so same load could probably be used by a better shooter and tighten that group even more.

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Steelhead43XGunny Sergeant
Rating: 3.4/5 this site
668 posts this site
Re: 260 loads
09/11/2016

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Winchester 243 brass necked up.
42.5 4451
CCI 200
140 ELD -M @ 2.870
No speeds yet but I'm guessing 2700ish
Really impressive groups.

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cruze5

XGunny Sergeant
Rating: 3.0/5 this site
651 posts this site
Re: 260 loads
09/20/2016 Last edited 09/20/2016 by cruze5

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45 grains RL22
Hor 140 seated at Sami specs
Federal match primers
Shot hole in hole in my CTR 260 20" bbl

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GenochristXFirst Sergeant
Rating: 3.6/5 this site
2131 posts this site
Re: 260 loads
09/27/2016

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---------------------------------------------
--- cruze5 wrote:


45 grains RL22
Hor 140 seated at Sami specs
Federal match primers
Shot hole in hole in my CTR 260 20" bbl



---------------------------------------------

What kinds of speed are you getting? RL22 is usually considered pretty slow for the 260

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cruze5

XGunny Sergeant
Rating: 3.0/5 this site
651 posts this site
Re: 260 loads
09/27/2016 Last edited 09/27/2016 by cruze5

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AV 2620 through 20" CTR. more than enough for my 300 yard range



Hornday manual says 46.6 is max load. i will go up to see what this rifles handle

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GregLangeliusXFirst Sergeant
Rating: 3.4/5 this site
5017 posts this site
Re: 260 loads
10/11/2016 Last edited 10/15/2016 by GregLangelius

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Starting development for ELD-X with Hornady 7-08 brass (necked to .260 case spec), H4350 (43.0gr starting load), CCI BR-2.

Barrel is L-W 28", 1-8" SAAMI chamber. mounted on trued Savage 10FP action (2001 origin).

I am concerned with the seating depth; with the seater set for 142SMK's, the bullet seats so deep the entire boat tail protrudes below the shoulder depth.

This is still early days, so some experimentation with seating jump and COAL is in order. Would like to try to get it to feed from the magazine, but will single feed if .020" jump and powder compression make it necessary.

Some review of previous posts here suggest 43.5gr max and 2850FPS likely.



Greg



PS, edited to add:

Just completed setting up the RL550B, and preliminary mag length testing shows that 2.850" OAL feeds, and does not contact the rifling. I'm going to leave the OAL there for now. Three dummy rounds in the 2001 10FP action all feed acceptably. Pressure testing beginning at 42.0gr of H-4350 is the next issue being addressed. Testing will eventually evolve to develop a 300m/328yd zero, max distance at a retired Army reserves base near the Border, and trying for distances out to 1300yd here at our 4800ft local altitude. I have miles of dry lake/bombing range to work with, less than 1 mile away.

After reviewing the Hodgdon site, I have built one each load in .5gr increments from 42.0 to 44.5gr (Hodgdon published Max for H4350 and 142gr bullets) of H-4350 for pressure testing.

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shoot1jmkXPrivate
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1 posts this site
Re: 260 loads
11/29/2016

---

Saving

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remmyshooterXPrivate
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27 posts this site
Re: 260 loads
12/07/2016

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Lapua brass
Expander mandrelled
.287 neck bushing
H4350 43.6gr.
2847 ish fps
Single digit s.d.
28in. Custom barrel gun works prescott az. Barrel
700 action
McMillan A5 stock
Badger bottom metal
Fn tack driver lites out to 1250yrds.

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catfish18XCorporal
Rating: 0.0/5 this site
50 posts this site
Re: 260 loads
12/10/2016

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catfish18 wrote:

Alpha brass
Fed 210m
45 grains h4831sc
143eldx .025 off lands
1/2 to 3/4 inch at 200 yards out of my 24 inch barreled John Beanland built 6.5 pound 260​

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DaiBando

XPrivate
Rating: 3.1/5 this site
48 posts this site
Re: 260 loads
12/22/2016

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147 ELD
43gr Reloder 17
Lapua .308
CCI 200
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campowerXCorporal
Rating: 3.0/5 this site
77 posts this site
Re: 260 loads
12/31/2016 Last edited 12/31/2016 by campower

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26" Hart select barrel, R700 built by Clarence Hammonds
143 ELD-X
Lapua brass
42.3gr H4350
2810fps
2.855 COAL
SD 8
CCI 200

1/2 groups consistantly with my crappy shooting, better with better shooters.

I have to give credit to Clarence Hammond Rifles out of Red Lion Penn. I've never owned a rifle this accurate. Tried 120 TTSX, 127 LRX, 130 VLD, 140 VLD, 130 Swift Sirocco, 140 ELD-M and 143 ELD-X and all would shoot under 1/2 with very little load devolopment and at magazine COAL. Used this rifle and load to harvest every large game animal in Maine this year (Black bear, Bull moose, and a smasher Buck) Brass rarely seems to grow in this chamber, on my 10th cycle of first 50 brass only neck sizing each time and it's still G2G. I'll dig up some targets and add then to this post.

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GregLangeliusXFirst Sergeant
Rating: 3.4/5 this site
5017 posts this site
Re: 260 loads
01/01/2017

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I appreciate the posts and data.

Right now, the 143 ELD-X project is on hold while prep is underway for getting my Granddaughter to her first National Level F-T/R event, the SW LR Nationals at Ben Avery in Phoenix first week of February. We shoot the MR 600yd day matches, using O/O Box rifles, a Stag .223 Model 6 Super Varminter (for her) and a Savage 11VT .223 (mine). Handloads are being used, new Win brass, 75gr HDY HPBT-Match, CCI BR-4, 24.4gr Varget. Wish us luck.



Greg

 

[Guest]

NewEnglandah

XCorporal
Rating: 3.1/5 this site
76 posts this site
Re: 260 loads
01/17/2017

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Tikka CTR
142 SMK
Lapua brass
42.0 H4350
2600 fps
This has been my starting load since having the rifle. Accuracy has been good, will probably try working up to a grain more and see what she'll do. I know I'm limited on performance with the 20" barrel.

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padom

XFirst Sergeant
Rating: 3.8/5 this site
3043 posts this site
Re: 260 loads
01/18/2017 Last edited 01/18/2017 by padom

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26" Bartlein M24 / Stiller TAC30/ XLR
3xLapua brass (annealed @ 2x)
Honed Forster FL sizer for .002 neck tension with Lapua brass, bumping .0015
42.6g H4350
210M
140 ELDM
seated .02 off lands

2855 / SD 6
sub 0.5moa out to 700yd which is max I tested. This load got me #3 spot on SH 100yd Challenge Hall of Fame and shoots one hole at 100yds.

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WyoWindCallXPrivate
Rating: 2.7/5 this site
13 posts this site
Re: 260 loads
Monday at 4:41 PM

---

22" X-Caliber barrel, .260 Tac chamber
140 Hornady HPBT
210M Primer
42.7g H4350
OAL 2.820"
Winchester 243 brass neck turned
Magnetospeed says 2687 Unsuppressed, and 2708 Suppressed
SD is about 8 to 10 depending on which shot group you look at.
100 Yard zero yields a 5.1m hold at 700y, and 12.2mil hold at 1200 yards.
Absolute pressure is 23.77 to 24 most days

 

[Airedale2]

Being new to long range shooting and reloading for it, I notice a lot of people using H 4350 but not Accurate 4350 can someone tell me why? Also this my seem like a real silly question but is it recommended to resize new brass? I just acquired a Tikka CTR in 260 and I'm just getting started in loading for bolt guns. I've been a handgun reloader for 40 years, but I don't think a Dillon 650 is going to work here. Thanks Ed

 

[jarhead1077]

Savage Model 12 260 Rem. HS Precision w/20 moa NF rail/rings and Vortex Golden Eagle 15 - 60 52mm SFP. Lapua brass 2TF, Lapua 139 scenar, GM210M, H4350 42.1 gr. Chrono 10 shot groups:

Jump -.010, Mean velocity 2843 fps, ES 37, SD 11

Jump-.020, Mean velocity 2857 fps, ES 25, SD 7

Could not find high/low node with 142 SMK or 140 Berger Hybrid

 

[Defender3]

Savage Model 12 260 Rem. HS Precision w/20 moa NF rail/rings and Vortex Golden Eagle 15 - 60 52mm SFP. Lapua brass 2TF, Lapua 139 scenar, GM210M, H4350 42.1 gr. Chrono 10 shot groups:

Jump -.010, Mean velocity 2843 fps, ES 37, SD 11

Jump-.020, Mean velocity 2857 fps, ES 25, SD 7

Could not find high/low node with 142 SMK or 140 Berger Hybrid

To confirm, this is with a 26" barrel?

 

[jarhead1077]

Yes 26 inch LRP with 205 rounds down the barrel.

 

[Defender3]

I have a LaRue tOBR in .260 with the 22" barrel. While it shoots the factory Hornady 130gr ELD-M really well, I'm working a load with the same 130g ELD-M projectiles, as well as some other bullets.

The rifle really liked:

Peterson brass, F210M, H130 ELD-M, 42.2g of H4350 loaded to 2.775 COAL.

That combo (but I only tested three rounds) averaged 2806fps, which is a sweet spot for my gasser versus some of the hotter loads. I'm going to shoot that load again this weekend but I'm going to try loading to a 2.184 BTO versus COAL.

As a side note, the virgin Peterson, in that load combo, seems to shoot about 10-20fps faster than virgin Lapua brass.

These have been reported to also perform well in the .260 tOBR:

Berger 130 AR Hybrid
42.9g Reloder 16
CCI 200 Primer
Hornady .260Rem Brass
2.184 to the Ogive

Hornady 130 ELD-M
40.8g of H4350
F210M
Peterson brass
2.79 COAL

Hornady 140 HPBT
35.8g Varget
F210M
Peterson Brass
2.80 COAL

130 Sierra TMK
F210M
47.0 gr 4831sc

As always, your mileage will vary.

 

[gonzaga]

I'm surprised that there isn't any new info on the 147 gr. Hornady ELD Match bullets out of a 260. I bought some and will be working up a load. I've got some H4350 to try with the load development.

 

[lash]

Well, post up here with your results for posterity.

 

[Steel head]

Some 147 ELD-M data from my new Shilen 26" barrel.

All loads at 2.950

Barrel has less than 100 rounds though it so far.
Necked up Winchester 243 brass.
CCI#200.

4831SC
46 2670 was looking for high limit and I plan on going higher now
45.2 2623
44.8 2592


4451
42.4 2652
42.2 2634
41.8 2608
plan in going higher with 4451 as well

My old barrel liked 140 eld's and 42.5 of 4451.
Low node.
New barrel also likes this load and I'll use it for short distance shots.
New barrel is getting 2690 with that load and did two 3/4 moa 10 shot groups back to back with a SD of 10.

I'd like to get the 147's to 2750ish for my longer distance loads
All the 4831SC loads had really low SD's but looking at primers and brass I'm not sure it will get me there.
A bit more headroom to go but probably not enough.

The 4451 looks lower in pressure at the higher load by a fair bit.

 

[rlh_20]

28 in Bartlein Tac Match
147 ELDm
2.875 oal (.005 off)
42.1 Reloder 16
2870 fps

 

[HoustonB77]

Tikka T3 TSR-1 260
20 inch barrel
4X fired Lapua Brass
CCI BR4
43.6 grains of H4350
2.875 OAL
143 ELDX
2738 FPS
Shoots .3 to. 4 in my rifle zero pressure signs.


Sent from my SAMSUNG-SM-G890A using Tapatalk

 

[lash]

I just picked up some 143 ELD X. I'll have to work up to this load in my TSR1

 

[HoustonB77]

I just picked up some 143 ELD X. I'll have to work up to this load in my TSR1

Let us know how it works. I'm working on a 147 ELD load now. Latter testing shows that I have a good node around 44 grains. Shots 8, 9, and 10 where at 43.8, 44, and 44.2
The second pic was the entire 10 shot group at 100. That is almost 2 full grains in powder charge difference. Something tell me the 147s are going to shoot.

Sent from my SAMSUNG-SM-G890A using Tapatalk

 

[squib]

26 inch barrel 1:8
New Lapua Brass
Federal Primer
45.2 grains of H4350
2.85 COAL
130gr Berger AR OTM
3000fps
4 shot group

 

[BearNaked]

26 inch barrel 1:8
New Lapua Brass
Federal Primer
45.2 grains of H4350
2.85 COAL
130gr Berger AR OTM
3000fps
4 shot group

I was just about to question running that much powder in mine and not having any pressure signs. I have seen most people running around 43 grs and not many over the 44 mark. I ran 44.4 grs of H4350 with an average of 3016 and an sd of 9 this past weekend. I am going to try to go up towards 44.8 and see what happens.

 

[squib]

I was just about to question running that much powder in mine and not having any pressure signs. I have seen most people running around 43 grs and not many over the 44 mark. I ran 44.4 grs of H4350 with an average of 3016 and an sd of 9 this past weekend. I am going to try to go up towards 44.8 and see what happens.

I went as high as 45.5 during OCW testing with no pressure signs and diminishing returns in velocity. YMMV

 

[Stealff]

24 in" bartlein 1-8 twist
Armalite AR-10
Remington Brass 4x 5x fired
Fed 210 primer
44 gn. H4831SC
2.80 OAL
140 AMAX
2650 fps.

Shoots under .75"
Going to step to 45 gn and see what I get.

 

[matleez]

26 in barline 1-8T
Tikka t3x
Peterson brass 308 palma sized down virgin
fed 205 regular primer
43.2 H4350
2.288 Ogive
147 ELD-M
2871 ES of 7 SD of 4
ragged vertical 1 hole group very happy with this, should be a hammer

 

[Timo Turl]

260 Rem with Lapua 139gr Scenar:
Primer: CCI Large Rifle 200
Brass: Lapua .260 Rem
Brass trim length: 2.028 (new case)
Head to datum: 1.616
Distance from lands: -0.010
OAL to ogive: 2.305
COAL: 2.86
Neck tension: 0.292
Powder: VV N550
Charge: 40.0gr
Bullet: Lapua 139gr Scenar
Velocity: 2805 fps
SD: 8
Suppressed: yes
Barrel length: 26”

 

[Timo Turl]

260 Rem with Nosler 130gr RDF:
Primer: CCI Large Rifle 200
Brass: Lapua .260 Rem
Brass trim length: 2.028 (new case)
Head to datum: 1.616
Distance from lands: -0.070
OAL to ogive: 2.245
COAL: 2.90
Neck tension: 0.292
Powder: VV N550
Charge: 42.0gr
Bullet: Nosler 130gr RDF
Velocity: 2920 fps
SD: 6
Suppressed: yes
Barrel length: 26”

Suppressed:
Three shot average velocity FPS:
40.5gr 2818 SD 7
41.0gr 2853 SD 4
41.5gr 2880 SD 9
42.0gr 2920 SD 6
42.5gr 2941 SD 8

String FPS:
41.4 2853
41.5 2885
41.6 2887
41.7 2890
41.8 2913
41.9 2916
42.0 2920
42.1 2934
42.2 2922
42.3 2937
42.4 2934
42.5 2953
42.6 2982

 

[lawofsavage]

If you wanted to setup a .260 to run 130 rdf’s or eld-m’s as fast as possible, what would you do as far as reamer choice and powder choice and all that stuff?

 

[matleez]

If you wanted to setup a .260 to run 130 rdf’s or eld-m’s as fast as possible, what would you do as far as reamer choice and powder choice and all that stuff?

I'd run 4350 or something close to it. Not sure on reamers though

 

[Emouse]

139 scenars and RL17.

 

[BearNaked]

Reloader 17 has given me faster speeds than 4350. I would start there. I was able to get 3075fps with 130 Hybrids.

 

[winniedonkey]

Anyone that is running the Norma 130s can you please post your cartridge specs and freebore. Trying to find out if I need a custom reamer for my intended COAL. Thanks.

 

[MattSplat]

• Weatherby Mk V Accumark factory rifle, pimped
• Maddco barrel, 24" long, No. 5 contour, fluted, 1-8" twist. Chamber cut with a PTG match reamer with 0.297" neck
• Lapua brass
• Federal GM215M magnum primers
• AMP Annealing standard program: 87
• 0.002" final neck tension
• 130 gr Berger AR Hybrid OTM Tactical
• CBTO 2.2710" – 0.0050" jump = 2.2660"
• 45.5 gr AR2209/H4350
• 3,018 fps, ES 11, SD 4.5 (MagnetoSpeed)
• It shoots very well, but a bit hard on my brass

 

[FishDr]

Anyone that is running the Norma 130s can you please post your cartridge specs and freebore. Trying to find out if I need a custom reamer for my intended COAL. Thanks.

My load using Norma 130 is 43.8 grs of H4350 in Lapua cases and standard CCI 200 primers. These are loaded to 2.790 OAL (2.200 CBTO using MY comparator). This is just under .02 off lands. They run ~ 2925 fps from a 24” Bartlein Barrel, accuracy is excellent. Not particularly jump sensitive, but I haven’t run them drastically different from this length.
I do not have reamer or freebore specs, but you can see that my FB is quite short. My guess is the smith uses a standard SAAMI spec reamer. The typical advice of a long freebore needed for these bullets to be accurate has not been true in my case. I have about 1100 rds on this barrel and no appreciable growth to lands - I have not adjusted my load since initial development. Still shoots 3/8 consistently and frequently much better.
Hope you find this helpful.

 

[winniedonkey]

My load using Norma 130 is 43.8 grs of H4350 in Lapua cases and standard CCI 200 primers. These are loaded to 2.790 OAL (2.200 CBTO using MY comparator). This is just under .02 off lands. They run ~ 2925 fps from a 24” Bartlein Barrel, accuracy is excellent. Not particularly jump sensitive, but I haven’t run them drastically different from this length.
I do not have reamer or freebore specs, but you can see that my FB is quite short. My guess is the smith uses a standard SAAMI spec reamer. The typical advice of a long freebore needed for these bullets to be accurate has not been true in my case. I have about 1100 rds on this barrel and no appreciable growth to lands - I have not adjusted my load since initial development. Still shoots 3/8 consistently and frequently much better.
Hope you find this helpful.

I wanted to play in that velocity range with the Norma 130s. Didn't even think of a shorter round having that ability. I always here 260 running longer. I like the sound of easy load development and just getting solid rounds down range. Thanks for the info.

 

[Unknown]

26" Obermeyer 5R barrel-varmint profile W/3 port compensator
CCI BR2 primers
43.8 grains H4350
Winchester 7mm-08 brass necked down to 6.5mm
2.30" to ogive
140 grain Sierra match king
2888 fps
Defiance machine action
1300 rounds through the rifle so far

Accuracy is better than I can hold. Shooting pieces of clay birds at 540 yards is boringly easy. I will hit 8 out of 10 pieces of clay bird that are probably 2"-2.75" in size. The two misses are my fault..not reading wind properly.

 

[Unknown]

FWIW: A way of choosing a starting load that has given me pretty good success:

Review various gun forums with sites like this one. Find loads that have as many of the components you hope to use listed in them. Take their best loads, and average them out. For example a 140 grain SMK bullet, H4350 powder, 24" barrel. Then average out everyone's best load, compare that to powder charges recommended by manufacturer to insure you are under max load, and start a wee bit under that. So far, every time I have tried this (308, Grendel, and 260 Rem) I end up within a grain of the average load that was recommended. It has saved me a lot of time and powder.

 

[M25BeastShooter]

Was looking to add another powder to my .260 Remington loads. I have recipes for Reloader 16 and 17 but lately getting them in the kegs quantities has been hit or miss. I have had excellent results with Power Pro 2000 MR in the .308 with 178 ELD-M/BTHP.

I started the loads at 40.0 grs

40.0 grs with the 147 gr ELD-M accuracy results about 1/2"

took the loads up and then chrono them.

All 147 gr ELD-M Remington brass S&B large rifle primers

All 5 shot groups at 100 yds
Temp 90 deg.
chrono with magnetto speed

I accuracy tested the loads first and checked for pressure signs as I worked up the loads
I chrono the 41.0 and 41.5 loads as they exhibited the best accuracy


41.0 gr .390" 2740 fps SD 3.6 no pressure signs rounded primer edges easy bolt opening
41.5 gr .470" 2740 fps SD 9.6 no pressure signs rounded primer edges easy bolt opening

42.0 gr .605 groups opening up no pressure signs
42.5 gr 1.567 groups wide open slight primer cratering

The chrono temp 70 deg

Some say the Power Pro 2000 MR is temp sensitive I will continue to test it. It is showing promise

 

[cruze5]

Tikka CTR 20"
41 grains of imr 4451 @ 2.825 = AV 2606

41.5 grains of imr 4451 @ 2.825= AV 2643.

looking forward to more loads with this powder

 

[Brandon05_88]

AIAT with small firing pin
26" Bartlein 5R 1:8" twist
Dave Tooley .260 Rem 0.298" neck 0.145" freebore reamer
TBAC 30P-1 suppressor
MagnetoSpeed V3 mounted on suppressor

Nosler 140 RDF
H4350 44.0 grains thrown from RCBS Chargemaster
Lapua brass sized with Redding FL bushing die with 0.292 bushing and 0.001" shoulder bump
CCI BR-2
2.880" OAL
2.235" BTO with Hornady 5-26 comparator
0.040" off lands
2885 fps
15 ES
5.9 SD

 

[matleez]

Ultimatum Deadline
Brand new American Barrel Company 26" 1:8 twist
.260 rem

147 Eld-M
H4831sc 49.1 grains with drop tube
lapua 308 palma brass about 5 or 6 firings, just gabbed some to do load dev with
Fed 205m
2.270 ogive OAL
not sure the jump havent measured
2909 FPS
ES of 12
SD 6

I ran all the way up to 49.5 and hit 2950 with no pressure but ran out of room.

 

[Brandon05_88]

147 Eld-M
H4831sc 49.1 grains with drop tube
lapua 308 palma brass

How long of a drop tube, and does the Palma brass have a larger internal capacity?

 

[matleez]

I'm not exactly sure if it has more capacity or not but I'm using a 24 inch tube

 

[Greg Langelius *]

The lack of pressure at the max charge that fits in the case suggests a possible advantage from using a faster powder. Factoring in the fact that H-4350 is the powder of choice for 260/6.5CM, and you may have an answer.

My experience with the 143 ELD-X in the 260 suggest that the 147's not really eager for large charges, and I suggest you begin load development at 41.0gr and work up. Watch pressure; I blew primers at loads (43.0-43.5gr of H-4350) that should have been mild in my estimation.

I think it's related to the substantially longer bearing surface, and the 147 could be even more sensitive to charge weight than the 143. My standard load with the 142SMK/140A-Max was 43.8gr of H-4350, so the 1gr heavier Hornady is popping caps at a grain or two less than the 142/140. I'm not certain why, but I really do suggest caution when starting development and working up.

In my case, with a 28" barrel, and high pressures from moderate charges, I may even be looking to go with the H-4831SC myself.

Greg

 

[matleez]

The lack of pressure at the max charge that fits in the case suggests a possible advantage from using a faster powder. Factoring in the fact that H-4350 is the powder of choice for 260/6.5CM, and you may have an answer.

My experience with the 143 ELD-X in the 260 suggest that the 147's not really eager for large charges, and I suggest you begin load development at 41.0gr and work up. Watch pressure; I blew primers at loads (43.0-43.5gr of H-4350) that should have been mild in my estimation.

I think it's related to the substantially longer bearing surface, and the 147 could be even more sensitive to charge weight than the 143. My standard load with the 142SMK/140A-Max was 43.8gr of H-4350, so the 1gr heavier Hornady is popping caps at a grain or two less than the 142/140. I'm not certain why, but I really do suggest caution when starting development and working up.

In my case, with a 28" barrel, and high pressures from moderate charges, I may even be looking to go with the H-4831SC myself.

Greg

Not only will you get less pressure but longer barrel life as well it's a cooler powder

 

[Greg Langelius *]

Returning to this topic, I agree that less pressure is preferable. My own .260 employs a 28" length, which favors the burn rate of the H-4831, and allows good performance without withering pressures and temperatures. This is where I believe the current push toward shorter barrels will probably break down; as may be evidenced by the simple fact that I've been shooting this same 28" barrel since before 2005.

So while the H-4350 suggestion is probably still good for the shorter barrels, and should probably be tempered with advice to watch pressure signs pretty carefully, the H-4831 and longer barrel would be my own preference. I have loaded 142SMK's and up to 50.0gr of H-4831 without appreciable pressures signs in a 24" barrel which was probably not well suited to getting full performance out of the H-4831. Accuracy was outstanding but velocity was not special. Not a recommendation, but still an observation.

BTW, since going with the electronic trickling powder measures (I love my RCBS Chargemaster Lite), my own need for the SC powders would appear to be less urgent. Seriously, they are coming down to more reasonable prices, and they are night and day when compared against the mechanical measures and balance scales.

Greg

 

[260Bryce]

Surgeon 591
24" 1:8.5 Bartlein Barrel YHM ULT 7" Suppressor
260 Match 0.098 Freebore
Peterson SRP 260 Brass
CCI BR4 Primer
42.6 grains H4350
Hornady 140 ELD-M Seated 2.150" CBTO
2780 fps Single Digit ES
1/4 to 3/8 MOA

 

[cannon643]

Remington 700
22” 1:8 5R Sendero
260 Starline LRP brass
CCI 200 primer
42.0 grains RE16
Hornady 140 ELD-M seated to 2.825 COAL
2760 FPS

 

[Ccollins02]

Last seasons load...

26" Criterion 1:8
Lapua LRP Brass
CCI BR2
43.0 H4350
139gr. Scenar at COAL 2.84"
Running at 2860fps
Consistent single digit SD's and sub 1/2 minute

 

[Steel head]

Some new data I got today.
26" Shilen savage prefit VLD260 chamber
147 ELD-M
Winchester 243 brass necked up
CCI #200
2.93 coal
IMR 4451
42.4-2676
42.6-2684
42.8-2693
43---2702
43.2-2730
43.4-2747
43.6-2782
43.8-2797
44---2803
44.2-2816