pyrofx
XSergeant
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>338 Lapua Magnum
10/08/2014
(1 vote)
Just tried the reloader 33 powder in the 338 . 99.0 gr
Kreiger 9.3 x27
fed 215mag
hornydaddy 285
2789 es of 6 with hornydaddy brass. bolt lifts fine untill the cam over . then it takes a bit of a nudge.
2796 es of 14with Lapua brass . effortless bolt lift .
both loads shot at 80 degrees, and at 400 yards with 12mph wind from 3.
they both kept 1" vert . last 5 shot group was 2.125" All at 400 yards
Greg
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ChrisGarrettHPBT
XFirst Sergeant
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Re: >338 Lapua Magnum
10/09/2014
Sako TRG-42 338LM 1:12" twist, so this is for the 250s.
Go-to powders are VV-165, VV-170, H-4831sc and H-1000.
I bought an 8# jug of H-4831sc and have used that a lot.
Pet load is H-4831sc at between 88gr-89gr under 250gr Scenars, LockBase, Berger OTMs and SMKs, for about 2875-2950ish fps depending on Miami temps. It's not a stiff load, but it's not a cream-puff load, either.
For the Berger 250gr pre-production testing, I just split the difference at 88.5gr and played with seating depth, my rifle likes that node that much.
Looking back at my VV-165 loads with the 250s, anything from 84gr-87gr and just about 2800 fps. VV-170 at 93gr in my 27.125" barrel yielded 2825 fps.
For my limited testing with H-1000 and the 250s, 97gr got me 2974 fps, so well on my way to be above hot at 3000 fps.
The rifle is fairly accurate (I'm just a hack) out to the 1000 yds that I've shot at 4-5 times, so most of those combos are close to one another accuracy-wise.
Chris
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lashlaroe
X52 MONTHS
Premium Member
First Sergeant
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Re: >338 Lapua Magnum
11/16/2014
I must have missed this one or maybe it just got pinned. I'm getting ready to star loading .338 LM for the first time and will be starting with H1000 and hornady 285 bthp, because that's what I have right now.
Based on searches on the old Hide and other googlization, I've got my starting points and maxes set for first try, but am still interested in loads others have had success with.
As you know, loading manuals and other industry sources seem notoriously slow to add load information for newish products. Even Hornady doesn't list good loads for it's own 285s that have been out for years.
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Diver160651
XFirst Sergeant
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Re: >338 Lapua Magnum
11/19/2014 Last edited 12/08/2014 by Diver160651
(5 votes)
338 Lapua MAG 1-9 26” | Powder | Grains | Primmer | COAL | OGIVE | RIFLE LANDS | FPS | |
TRIM 2.723 | COAL | OGIVE | | | | | | |
285gr A-MAX Hornady | H1000 | 92.5 | FLR-MAG | 3.739 | 2.9525 | 3.759 | 2.972 | 2950 |
[IMG2=JSON]{"alt":"338 Lapua Magnum 285gr A-Max @2835fps","data-align":"none","data-size":"full","height":"180","width":"240","src":"https:\/\/farm9.staticflickr.com\/8117\/15557339127_6cd3ed56e5_m.jpg"}[/IMG2]
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lashlaroe
X52 MONTHS
Premium Member
First Sergeant
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3294 posts this site
Re: >338 Lapua Magnum
11/20/2014
Thanks Diver. Just what the doctor ordered. I'll start low and work my way there.
Excellent group BTW! Impressive shooting and rifle.
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dTros
XFirst Sergeant
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Re: >338 Lapua Magnum
11/25/2014
Stiller Tac338
22" Shilen Match Select
300gr SMK
92 gr H1000
Lapua Brass
215M Primer
2710 FPS
Regards,
DT
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KITTYCATMANX26 MONTHS
Premium Member
Corporal
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Re: >338 Lapua Magnum
11/27/2014
Plinking: 250gr Scenar or SMK, 86-88gr IMR 7828 (easy on the brass and bore)
Stout load: 300gr Scenar, 92gr Retumbo
Long Range: 267gr MTAC (single feed), 95gr H-1000 (still working up)
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DefenseLaw
XSergeant
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Re: >338 Lapua Magnum
12/03/2014
96 gr RL-33
Lapua Brass
215 GM
300 SMK, .02 off the lands.
32 inch Pac-Nor, 2936 FPS.
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vinsonrXGunny Sergeant
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Re: >338 Lapua Magnum
12/08/2014 Last edited 12/08/2014 by vinsonr
300gr Scenar
92gr H1000
Lapua Brass
215 primer
base to ogive: 2.95
2820 fps
26" 1:10 DTA SRS
A writeup I did while doing load devel for my 338:
338 Load Devel
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secondofangle1X27 MONTHS
Premium Member
Gunny Sergeant
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Re: >338 Lapua Magnum
12/23/2014 Last edited 09/24/2015 by secondofangle1
DTA SRS DT barrel 26"
lapua brass
fed 215m
92.0 retumbo
2745 with SD 6.0
300 grain Nosler cc
< 0.5 MOA 5 shot groups
ETA I'm getting a slight ejector mark, very faint, so I backed down to 91 grains. My barrel since it was broke in is faster, so 91 grains still gets me 2752 average velocity 5 shots, SD <10 FPS. Next I'm going down to 90 grains, just to be kind to the brass, just in case. To reiterate, this does not appear to be a HOT load, I'm backing down for brass life and an extra safety margin.
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epracmetconXSergeant
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199 posts this site
Re: >338 Lapua Magnum
12/31/2014
AI AX338 27 inch barrel
Winchestor WLRM primers
94.0 GR of Retumbo
300 gr Berger OTM Hybrids
According to my DOPE, running around 2960fps
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captacademyXGunny Sergeant
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Re: >338 Lapua Magnum
01/12/2015
vinsonr wrote:
300gr Scenar
92gr H1000
Lapua Brass
215 primer
base to ogive: 2.95
2820 fps
26" 1:10 DTA SRS
What distance was your testing shot at 100 0r 300 yds?
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reeldoc1XSergeant
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437 posts this site
Re: >338 Lapua Magnum
01/16/2015
epracmetcon wrote: AI AX338 27 inch barrel
Winchestor WLRM primers
94.0 GR of Retumbo
300 gr Berger OTM Hybrids
According to my DOPE, running around 2960fps
Distance off lands?
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reeldoc1XSergeant
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437 posts this site
Re: >338 Lapua Magnum
01/23/2015
up for overall length info please
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epracmetconXSergeant
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199 posts this site
Re: >338 Lapua Magnum
02/10/2015 Last edited 02/10/2015 by epracmetcon
reeldoc1 wrote:
epracmetcon wrote: AI AX338 27 inch barrel
Winchestor WLRM primers
94.0 GR of Retumbo
300 gr Berger OTM Hybrids
According to my DOPE, running around 2960fps
Distance off lands?
I'll have to measure when I get home. I am loading them to mag length, they are quite a ways off the lands. I would not recommend this load for everyone, it is just a touch over pressured.
EDIT: They are 3.784 COAL.
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rltw75
XSergeant
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Re: >338 Lapua Magnum
02/21/2015
Looking for some input and your opinion on the Berger 338 OTM's.
I have H1000 and some 250's to load up. Been using scenars but wanted to give the Berger's a shot.
26". 1:9.4 Krieger. 1500 yards is max range available. My rifle likes bullet jump (.015).
Thanks
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cecchino76XFirst Sergeant
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Re: >338 Lapua Magnum
03/11/2015
secondofangle1 wrote:
DTA SRS DT barrel 26"
lapua brass
fed 215m
92.0 retumbo
2745 with SD 6.0
300 grain Nosler cc
< 0.5 MOA 5 shot groups
no pressure whatever
What is your COAL or to the ogive length ?
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WolfCobraXSergeant
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Re: >338 Lapua Magnum
03/14/2015
I am currently making a MV of 2632 out of my 27" AI AXMC using Berger 300 OTMs and 87.4 grains of H1000. What kind of velocity jump should I expect if I bump it up to 89.5 grains of H1000? I'd like to get a little more out of my transonic range for shooting at a mile by shooting closer to 2700-2800, but started getting harder bolt lift at 90 grains with Hornady brass. Is it likely I could even push it a little further using Lapua brass?
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rltw75
XSergeant
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Re: >338 Lapua Magnum
03/15/2015
WolfCobra wrote:
I am currently making a MV of 2632 out of my 27" AI AXMC using Berger 300 OTMs and 87.4 grains of H1000. What kind of velocity jump should I expect if I bump it up to 89.5 grains of H1000? I'd like to get a little more out of my transonic range for shooting at a mile by shooting closer to 2700-2800, but started getting harder bolt lift at 90 grains with Hornady brass. Is it likely I could even push it a little further using Lapua brass?
I am using both Lapua and Norma brass with Berger 300 OTM's.
26" Krieger with 92.0 of H1000 at 2800. My best nodes were between 91.5 and 92.0
I have settled on 91.8 (base to ogive @ 2.956), seated at 2.933 (.023" jump) with no pressure on brass or sticky bolt. Loaded at the absolute maximum magazine length (coal @ 3.788"). MV is 2788 over my V3.
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secondofangle1X27 MONTHS
Premium Member
Gunny Sergeant
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503 posts this site
Re: >338 Lapua Magnum
03/15/2015 Last edited 04/08/2015 by secondofangle1
cecchino76 wrote:
secondofangle1 wrote:
DTA SRS DT barrel 26"
lapua brass
fed 215m
92.0 retumbo
2745 with SD 6.0
300 grain Nosler cc
< 0.5 MOA 5 shot groups
no pressure whatever
What is your COAL or to the ogive length ?
B-ogive 2.971 which is about eleven thou off lands.
ETA I'm getting a slight ejector mark, very faint, so I backed down to 91 grains. My barrel since it was broke in is faster, so 91 grains still gets me 2752 average velocity 5 shots, SD <10 FPS. Next I'm going down to 90 grains, just to be kind to the brass, just in case. To reiterate, this does not appear to be a HOT load, I'm backing down for brass life and an extra safety margin.