243 Load Data

[aam]

From Scout Snipers Hide,

243 Win Loads
10/15/2014

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Out of my 26" Brux 1-8 twist

Lapua Brass
Fed 210m
42 Grains H4350
Berger Hybrid 105
.020 jump
3050 fps
LaytonHXFirst Sergeant
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Re: 243 Win Loads
10/15/2014
(1 vote)

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Does anyone shoot 115g DTACs with H4831SC? Looking for a good load to start with as I have a bunch of both and a 243 build on the way.



L

z71ratXFirst Sergeant
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Re: 243 Win Loads
10/26/2014 Last edited 10/30/2014 by z71rat

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Savage factory V/T - 9.25 Twist (currently 22" - at least until the suppressor gets here)
Lapua Brass
CCI Primers
40.5 Grains IMR4350
Hornady BTHP Match 105s
COAL of 2.773
Jump of .015 to .020 - Haven't decided for sure which one I like
Groupings are averaging .650"ish (.371 best, to .684 so far) 3 & 5 shot groups respectively
Unknown fps at the moment... I will NEVER loan out a chrono again.

DK
AIS75XSergeant
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Re: 243 Win Loads
11/06/2014

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PCR built 243

26" Keiger 1-7.5 twist

FG 210m

105 hybrids

44.3 gr H4831sc

2.825 oal

Jumped .030

3148 fps

shoots .4 @ 200 and has tested very well out to 1300



TOPPREDATORXFirst Sergeant
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Re: 243 Win Loads
12/08/2014 Last edited 12/08/2014 by TOPPREDATOR

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Hornady 105 gr BTHP
46.5 gr H-1000
Fed 210 LR primer
Brass trimmed 2.040
OAL 2.780 (.005 from lands, Rem 700 1:9.25 twist)
2809 FPS, 26" barrel, chrony 10' from muzzle

Hornady 100 gr BTSP
47 gr H-1000
Fed 210 LR primer
brass trimmed 2.040
OAL 2.698 (.010 from lands, Rem 700 1:9.125 twist)
2907 FPS, 26" barrel, chrony 10' from muzzle

Shot prone, bipod and rear bag

100Y .81" CTC 5 shot group
200Y 1.3" CTC 5 shot group
325Y 2.25" CTC 5 shot group
425Y just under 4" CTC 5 shot group

In comparison to 105 BTHP, the 100 BTSP load by going 100fps faster:
100Y .7" CTC 5 shot group (46 gr of the 105's printed a .81, same as the BTSP)
200Y 1.75" CTC 5 shot group
325Y 2.50" CTC 5 shot group
425Y 3" CTC 5 shot group

At all distances up to 425Y, it appears the 100 BTSP very closely matches within .25” to .75" the performance (drop, POI, POA) of the 105 BTHP Match, and after looking at some more notes, the 105 Amaxes too when the 100 BTSP are pushed 100 FPS faster, and seated back just a little deeper. As far as printing on paper, it is one hell of an accurate hunting bullet out to 425Y - with no real adjustments needed to zeroes, optics, holds or other DOPE.

So even for a less glamorous bullet, it appears the humble 100 gr BTSP is one heck of a bullet, either as a substitute for the more premium heads out to 425Y or standing by itself as "the bullet that could", with better availability than the 105 BTHP & Amax that can be used at shorter to "mid" distances before the higher BCs of the "premiees" starts to be of value.

from the sniper'shide info archive:
100gr BTSP
forum.snipershide.info/showthr...=.243+BTSP+BTHP
105gr BTHP
forum.snipershide.info/showthr...=.243+BTSP+BTHP

100 BTSP VS. 105 BTHP VS. 105 Amax (medium range):

FPS 105 HornadyBTHP H-1000 avg of 5 rounds, 67-70 deg F, 55% hum, +2040 ft sea level chrony 10 ft from muzzle.
45.5 gr 2668fps
46.0 gr 2764fps
46.5 gr 2809fps
47.0 gr 2849fps

105 HornadyAmax H-1000 avg of 5 rounds
45.5 gr 2668fps
46.0 gr 2716fps
46.5 gr 2737fps
47.0 gr 2767fps

Deviation in bullet length (meplat most likely)
10 105 bthp heads avg of 1.220 with .005 in dev. (obviously shorter without plastic tip)
vs.
10 105 amax heads avg of 1.239 with .003 in dev.

The BTHP showed not much of a difference group size out to 425Yards (my longest local range for testing) Vs. the 100 gr BTSP when the 100's are 100fps faster. The 105 BTHP and surprisingly the 100 gr BTSP seemed to do better than the 105 Amaxes out to 425Yards also, at least through my rifle and powder used.
knockmdownXFirst Sergeant
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Re: 243 Win Loads
01/13/2015

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GAP built 700, 243Win Match

26" Rock 5R, 1:7.5" tw, Rem Var. contour

115 DTAC (moly)

2.860" coal

47.2gr RL-25

Fed 210M

Lapua brass

3080 fps

bcrichctXSergeant
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Re: 243 Win Loads
01/13/2015

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Anybody have LR243 gas gun loads? Using 105g amax? Or other?

LaytonHXFirst Sergeant
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Re: 243 Win Loads
01/25/2015 Last edited 04/14/2015 by LaytonH
(1 vote)

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Moon built 700, 243Win Match

28" Bartlein 5R, 1:7.5" tw, M24

105 Berger hybrids

2.905" coal

47.2gr RL-25

Fed 210M

Lapua brass



3234fps Avg

Series	1	Shots:	5
Min	3227	Max	3238
Avg	3234	S-D	4
ES	11
Series	Shot	Speed
1	1	3236	ft/sec
1	2	3236	ft/sec
1	3	3238	ft/sec
1	4	3227	ft/sec
1	5	3234	ft/sec

DRAM40A1XGunny Sergeant
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Re: 243 Win Loads
02/11/2015

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bcrichct wrote:
Anybody have LR243 gas gun loads? Using 105g amax? Or other?​

Have you used the 105 AMAX in your LR243? I bought one last weekend and it has a 1 in 10" twist. I don't think it will stabilize the 105???

I did however load 87 VMAX to about 2975 with 42.5 grains of H4350 and it just about shoots through the same hole.

sierracharlie338XFirst Sergeant
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Re: 243 Win Loads
02/14/2015 Last edited 06/09/2015 by sierracharlie338

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Currently getting the following out of GAP tuned 700 action

Hornady Brass
105 Amax
24" Kreiger 1 in 8 twist
2850 FPS
CCI Primers
43.1g RL19 ***this is book max***
2.135 BTO

This is just initial load development hope to be shrinking the groups and upping the velocity to about 2900.
burban90XCorporal
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Re: 243 Win Loads
02/17/2015

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22" stevens 200 factory sporter barrel
Win brass
wolf LRP
42.5gr H100v
Hornady 105 bthp 2.20" COAL
2890fps
****VERY HOT LOAD**** work up to it
On the 8th loading of brass so far w/o issue
bcrichctXSergeant
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Re: 243 Win Loads
02/18/2015

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---------------------------------------------
--- DRAM40A1 wrote:

bcrichct wrote:Anybody have LR243 gas gun loads? Using 105g amax? Or other?
​

Have you used the 105 AMAX in your LR243? I bought one last weekend and it has a 1 in 10" twist. I don't think it will stabilize the 105???

I did however load 87 VMAX to about 2975 with 42.5 grains of H4350 and it just about shoots through the same hole.



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

I just tested the 105's & they did shitty no matter the charge so you are right the 1/10 won't stabilize those amax's. I too tested the 87g vmax & got nice 1.5" groups but that was using varget I'll have to try H4350. Thanks for your help.
Pax22XCorporal
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Re: 243 Win Loads
03/17/2015

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Can anyone recommend a good starting load for a factory rem 700 26in barrel? I want to use the 105gr amax I'm new to reloading so I'm not sure what powders would work best... I was thinking reloader 19. Any suggestions would be appreciated.

bcrichctXSergeant
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Re: 243 Win Loads
03/20/2015

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---------------------------------------------
--- Pax22 wrote:

Can anyone recommend a good starting load for a factory rem 700 26in barrel? I want to use the 105gr amax I'm new to reloading so I'm not sure what powders would work best... I was thinking reloader 19. Any suggestions would be appreciated.

H4350

---------------------------------------------
luap129X136 MONTHS
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Re: 243 Win Loads
03/26/2015 Last edited 03/26/2015 by luap129

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Savage 12FV 24in barrel with 9.25 twist
Hornady 87gr AMAX
H4350 40.3 grs
Winchester primer
Usually puts all 5 touching depending on how much coffee ive had.

Sierra 95gr Match
IMR4350 39 grs
Winchester primer
1/2 in groups
Still working on that one but i see a future in it.
luap129X136 MONTHS
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Re: 243 Win Loads
03/30/2015

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Savage 12 BV12 Factory barrel 9.25 twist
Sierra 95gr hpbt match
H414 42gr
Seat .005 off lands
3 shot group touching at 100
650ft for elevation and the temp is 40
CoolhandSpookXSergeant
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Re: 243 Win Loads
03/31/2015

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Factory 22" Rem SPS .243 Win., 9.125 twist. ~3000 rounds.



Lapua Brass and CCI Primers. Neck sizing only, getting ~25 loads per case before stiff bolt closure.



85 gr Sierra Gameking HPBT

36.0 gr IMR 4064

2.277 BTO (0.015 off the lands)

Very accurate out to 600 yds, hardly any recoil.



105 gr A-Max

47.0 gr Retumbo

2.284 (0.02 off the lands)

Very accurate out to 960 yds (max tested), excellent whitetail load.



Overwatch260XSergeant
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Re: 243 Win Loads
04/01/2015

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Winchester 70 Featherweight 22" .243 10 twist
Coyote/varmint load
Lapua brass
CCI 200 primers
87 gr Hornady VMAX
42.0 gr H4350
2.725" COAL
.010" off the lands in this rifle
3025 FPS 5 shot avg, SD 9 through Magnetospeed V3
LaytonHXFirst Sergeant
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Re: 243 Win Loads
05/11/2015 Last edited 05/11/2015 by LaytonH

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28" Bartlein 1-7.5 twist

Lapua Brass

Fed 210m

46g RL26

115g DTACS

2.953" COAL

3070 fps

Pax22XCorporal
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Re: 243 Win Loads
05/29/2015 Last edited 06/09/2015 by Pax22

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Out of factory Remington sps 26in barrel 1-9.125 twist

Hornady Brass

CCI primer

42.5 g H4350

105 A-Max

2.790 COL

Getting about 2,900 fps

Groups consistently at 3/8 inch at 100 yards.

amac79XCorporal
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Re: 243 Win Loads
06/19/2015
(1 vote)

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25" Criterion 1:7 twist

Hornady Brass

44.5 grains H4381sc

Fed 210

Berger 105 Hybrid

.028 Jump 2.250 to Ojive (~2.845 OAL)

3050 fps

SD 6 over 20 shots according to Magnetospeed V3

Tested very well out to 1,205 yds





TOPPREDATORXFirst Sergeant
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Re: 243 Win Loads
08/01/2015

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Ruger American Compact 18" short barrel .243



1:9 twist



Tried IMR4198 & 3031 for the burn rate, and had it on hand.



Remington brass, trimmed to 2.040



Fed 210 primer



Hornday 87gr V-max - I started at 36 gr of 3031, up to 37 grains with 37.5 being max, using a combination of seating depths from .005 to .320 off the lands. An OAL of 2.640” (.032 off the lands) produced 2 five round groups of .75” X 1” at 200 yards at 2900 FPS through an 18” barrel.



A nice smooth reduced load on the 87’s was 29.5 gr of IMR4198, 2.662 OAL, with 1.75” at 200 Yards.



Hornady 100gr BTSP, I started with 33.5 gr of IMR3031 at 2.672 OAL (.005 off lands) which was a nice reduced load and produced a 1.75” x 2.25” 5 shot group at 200 Yards at 2504 FPS.





At 34.5 grains (35gr being max) and an OAL of 2.662” the 100’s produced a 5 shot group just under 1.25” CTC at 2612 FPS – different bullet, again sub MOA at 200 Yards.



Hornady 100gr BTSP with a charge of 34.5 gr of IMR3031, with a 2.632 OAL, or deeper seating of -.045 off the lands that produced a CTC group of .75” wide” x 1.125” high, 2625 FPS at 200 Yards.



The American seems to like deeper seated bullets

BbearTXXPrivate
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Re: 243 Win Loads
09/30/2015

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Weatherby Vanguard S2 24" bbl



43.5 gr IMR 4350

Nosler 90gr Accubond

3175 fps SD of 8.7 .015 jump

WLR primer Nosler brass



37 gr IMR4064

Nosler 85gr Partition

3225 fps SD 11 .020 jump

WLR primer Nosler Brass

JimichangaXSergeant
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Re: 243 Win Loads
10/21/2015 Last edited 10/21/2015 by Jimichanga

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Defiance Deviant action with a 25" Criterion 1:7 twist from McRees Precision



Winchester brass

41.1 grains H4350 DANGER ***** this is over book work up in your rifle*****

CCI 200

DTAC 115gr pointed (uncoated)

.005 off lands

2980 fps

SD 8 over 10 shots according to Magnetospeed V2

Used .3 G7 and confirmed dope out to 1010 yards

colt933XFirst Sergeant
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Re: 243 Win Loads
11/27/2015 Last edited 11/27/2015 by colt933

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Ruger Precision Rifle, factory CHF .243 barrel.

Lapua brass

107SMK

IMR4350 39.7

CCI BR

.010" jam, about 2.810 COAL.

MV 2855, SD 11

This is the low node, and QL predicts 52292psi which is pretty mild. The next node was above SAAMI max pressure (as calculated by QL) but showed no signs of pressure. The elevation difference between the two, at 1000 yards, is calculated at about 4.25MOA, so I opted for the lower node with hopes of increased barrel life.



I used a Forster BR FLS die for the first two loadings of the virgin brass. Fired brass in this chamber shows no measurable movement of the shoulder vs. factory/virgin Lapua brass - it's a true zero headspace chamber. For the third loading, I used a Lee collet neck sizer die with the necks lubed with Imperial graphite, and the accuracy and SD may have improved slightly. I SS tumble the brass, so I lube the bullet with some Imperial graphite before seating. Tension is about .001 with the Lee die, and maybe closer to .002 with the Forster BR FLS.

Rifle has 200 rounds through it, and this load shoots 1/2MOA at 100 and 200 yards (farthest I've tried so far).

DaveThomas83XSergeant
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Re: 243 Win Loads
12/03/2015

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Ruger Precision Rifle, factory CHF .243 barrel.
Fireformed Winchester brass
107SMK
IMR4350 40.0
MV 2950
0.020" jump

At a total of 250-ish rounds, the rifle is now cpaable of 0.325" groups at 100yards if I do my part.
308220XGunny Sergeant
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Re: 243 Win Loads
03/01/2016

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Savage 22" 9 1/4 twist
105 Amax
46gr H1000
Lapua brass
CCI 200 primer
2.820 oal
3000fps

1/2moa. No pressure signs.

ProfessorOblivionXPrivate
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Re: 243 Win Loads
03/07/2016

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Savage 12 LRP 26" 1:9.25 twist

105gn Hornady Amax

41.4gn IMR4831



2850fps @ 2.720" COAL

2950fps @ 2.690" COAL

Both are fairly accurate. Slight edge to 2.720"



Lapua Brass (both new and fire formed)

CCI 200 and Win LR primers

.600 MOA, usually. Best is 4, 4 shot groups averaging .382 MOA @ 100 yards. Best single 4 shot group was .151 MOA.

colt933XFirst Sergeant
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Re: 243 Win Loads
03/11/2016 Last edited 03/11/2016 by colt933

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colt933 wrote:
Ruger Precision Rifle, factory CHF .243 barrel.

Lapua brass

107SMK

IMR4350 39.7

CCI BR

.010" jam, about 2.810 COAL.

MV 2855, SD 11

This is the low node, and QL predicts 52292psi which is pretty mild. The next node was above SAAMI max pressure (as calculated by QL) but showed no signs of pressure. The elevation difference between the two, at 1000 yards, is calculated at about 4.25MOA, so I opted for the lower node with hopes of increased barrel life.



I used a Forster BR FLS die for the first two loadings of the virgin brass. Fired brass in this chamber shows no measurable movement of the shoulder vs. factory/virgin Lapua brass - it's a true zero headspace chamber. For the third loading, I used a Lee collet neck sizer die with the necks lubed with Imperial graphite, and the accuracy and SD may have improved slightly. I SS tumble the brass, so I lube the bullet with some Imperial graphite before seating. Tension is about .001 with the Lee die, and maybe closer to .002 with the Forster BR FLS.

Rifle has 200 rounds through it, and this load shoots 1/2MOA at 100 and 200 yards (farthest I've tried so far).​

I got some Winchester brass and re-worked this with it.

Win brass

107SMK

IMR4350 40.2gr

CCI LR

.010" jam

MV2877, SD 1.7!!!

MilitarybuiltXSergeant
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Re: 243 Win Loads
04/15/2016 Last edited 04/15/2016 by Militarybuilt

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.243 RPR 26" barrel 5R.


New Hornady brass
CCI standard LRP
47gns Reloader-25
115 DTAC
Mag Length
SDN-6 Suppressed

Measured with Magnetospeed V3

3000fps
3010fps
3005fps.

Re: 243 Win Loads
04/19/2016

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What OAL are you using? I am getting 3040 with 45.5 gr of RL-25 and the 115's.​

Militarybuilt wrote: .243 RPR 26" barrel 5R.


New Hornady brass
CCI standard LRP
47gns Reloader-25
115 DTAC
Mag Length
SDN-6 Suppressed

Measured with Magnetospeed V3

3000fps
3010fps
3005fps.​

MilitarybuiltXSergeant
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Re: 243 Win Loads
05/23/2016

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Mine are loaded to PMAG length. So probably quite short.

twill4590 wrote:

What OAL are you using? I am getting 3040 with 45.5 gr of RL-25 and the 115's.​

Militarybuilt wrote: .243 RPR 26" barrel 5R.


New Hornady brass
CCI standard LRP
47gns Reloader-25
115 DTAC
Mag Length
SDN-6 Suppressed

Measured with Magnetospeed V3

3000fps
3010fps
3005fps.​

ShootnjunkyXGunny Sergeant
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Re: 243 Win Loads
06/09/2016

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where are you guys finding dtacs

MilitarybuiltXSergeant
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Re: 243 Win Loads
08/08/2016

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Shootnjunky wrote:
where are you guys finding dtacs​

davidtubb.com/tubb-accuracy-reloading

Wait for them to come in stock and order a big box... Or get lucky like me and find people selling them in the classifieds.
RingxXFirst Sergeant
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Re: 243 Win Loads
08/26/2016

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did some testing today with a new RPR...

47.3-47.7gr RL26

105 Amax HBN coated

nosler brass

cci primer

COL 2.77



most accurate was 47.3, but it was 3235fps !!!!!!!!!!!!!1

so running a new test from 45.5 - 46.5 on the weekend...

uspsa2011XPrivate
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Re: 243 Win Loads
09/08/2016

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I had a similar experience with my rpr barrel. 46.0 grains of rl26 got a 105 hybrid to 3200fps. Zero pressure sign.

tinlizardXPrivate
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Re: 243 Win Loads
09/13/2016 Last edited 09/13/2016 by tinlizard

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Ruger Precision Rifle, 26" 1:7.7

95 gr. Sierra Tipped Matchking

Hornady brass

CCI BR2

48.0 Viht N-165 (OVER BOOK!! WORK UP!!)

.010 jump

3143 fps Avg. 5 shots 4 SD 11 fps variance

3" at 600 yds

No pressure signs at 94 f.



(This rifle has an excellent chamber. This result was on the 17th loading of this brass, neck-sized only with a Lee collet sizer, annealed after 14th loading.)



brentacXSergeant
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Re: 243 Win Loads
11/15/2016

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I achieved .6 MOA 5 shot groups almost immediately in my RPR with a 105 Berger HVLD, Norma MRP, CCI 250 in Win brass. With a little load tweaking to center the powder charge in the high node along with a primer test and some seating adjustment, I duplicated several five shot groups averaging .5 MOA from a bipod in the prone. I still need to get a velocity measurement with the magneto and do some long range validation, but if this load performs with continued consistency it will work fine.

My load:
105 HVLD .007" off the lands
44.2 grains Norma MRP
CCI250
WW brass, weight sorted with a deburred case mouth and flash hole.

Another load that stacks into tiny groups in my RPR is a load I had leftover from a previous 243 Win. It is a great hog load, and I killed several with it.

95 grain Hornady SST
42.0 grains RL17
CCI 250
WW brass

BeirutyXFirst Sergeant
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Re: 243 Win Loads
12/04/2016

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Any reloads for 1:10 24" barrels?

BeirutyXFirst Sergeant
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Re: 243 Win Loads
01/08/2017 Last edited 01/08/2017 by Beiruty

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Sako A7 243 24" semi-heavy fluted barrel 1:10, 5 shots

Hornady 87gr V-max over 35.6gr Varget at 2.590"

NIZNACXPrivate
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Re: 243 Win Loads
01/17/2017

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Ruger RPR factory bbl



55 Nosler BT LF

H-414 47.2 grains piezo tested 54000psi

CCI No 34 primers

RUAG brass

CBTO: 2.100" COAL: 2.250"

3850 fps

5 shots 1/2moa

denobravoXPrivate
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Re: 243 Win Loads
01/24/2017

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I hqve a 243 gas with an 8 twist
what have you found for yours
looking for R17,R23,IMR4350
95SMK 105 bthp



denobravoXPrivate
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Re: 243 Win Loads
01/24/2017

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what have you found for your 95 SMK

 

[Tactical Taz]

Anybody else using H4831SC? I am trying to work up a load with it and not sure how high I can reasonably go? My last load was 44.5gr of H4831SC with 2980 MV over a magnetospeed V3. I would ideally like to get velocities in the 3050-3150 range. From my results so far I had sporadic primer flattening, as in about every third primer was flattened, this makes me hesitant to push it. This was over a range from 40.0-44.5 gr H4831SC. I read on scout a guy was up at 45.8 gr but my gut tells me this pretty high. I am not sure how high to go though since 44.5 is the highest I have found here. There still is case capacity with 44.5gr H4831SC by the way. Shooting 105 RDF's, Hornady Brass.