Powder for .338 LM

[SAS_Sniper]

Guys,give me an help..for 338 lapua magnum : HODGDON H4831 , IMR 7828 , NORMA MRP II or VV N560 ???
Thanks a lot!

PS: remington MLR .338 LM, 1/10 twist rate and barrell lenght 660 mm - bullets are scenar 250 grains

 

[ChadTRG42]

Re: Powder for .338 LM

R25, too. What bullet you plan to shoot?

 

[SAS_Sniper]

Re: Powder for .338 LM

lapua lock base and scenar, both 250 grains .. thanks!

 

[Emilio]

Re: Powder for .338 LM

H1000 and H4831sc

 

[Deisel]

Re: Powder for .338 LM

I am using H4831SC with the Lapua 250 gr bullets. Works very well.

 

[SAS_Sniper]

Re: Powder for .338 LM

with 4831, recommended dose?

 

[Emilio]

Re: Powder for .338 LM

I run 88.3grs of H4831SC

 

[Jer]

Re: Powder for .338 LM

If you are looking for a temp stable powder check out Retumbo too. A few guys I know that know .338 quite well suggest it and use it with great results. Also, with that twist you may want to look into shooting the big 300gr projectiles.

 

[SAS_Sniper]

Re: Powder for .338 LM

my target will be from 600 to 1000 mt..

 

[ChrisGarrett]

Re: Powder for .338 LM

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SAS_Sniper</div><div class="ubbcode-body">Guys,give me an help..for 338 lapua magnum : HODGDON H4831 , IMR 7828 , NORMA MRP II or VV N560 ???
Thanks a lot!

PS: remington MLR .338 LM, 1/10 twist rate and barrell lenght 660 mm - bullets are scenar 250 grains </div></div>

H-4831sc is my go to powder out to 1k with 250 Scenars/SMKs in a 1:12" Sako TRG. ~86-88grs should be fine for about ~2825-2875 fps.

WORK UP in your own weapon.

Chris

 

[SAS_Sniper]

Re: Powder for .338 LM

thanks Chris.. but, my twist rate is 1/10 ... is a problem with 250 grains bullets?

 

[Deisel]

Re: Powder for .338 LM

My rifle is an AI AWSM in .338 LM 1 in 11 twist. My load is Lapua brass, Federal 215 primer, 90.5 grains of H4831SC and the Lapua Scenar 250 grain bullet. I am getting 2950 fps with this load and have found it to be quite accurate.

 

[.338Lapua Magnum]

Re: Powder for .338 LM

Vit 165 with both 250 grain scenars and lockbase. Good out past 1400m

 

[ChrisGarrett]

Re: Powder for .338 LM

It's always preferable to have a faster twist with a shorter (lighter) bullet, than to be stuck with a slower twist and a longer (heavier) bullet.

250s should be fine, but every barrel is different and you're the only one who can tell via loading them up and shooting them.

.338 is right, my gun loves VV-165 with the 250s, but it's a bit harder to find here and more money. I'd call it a toss up between the easier to find H-4831(sc) and VV-165, performance wise.

I also use VV-170 for a somewhat softer recoil impulse and H-1000 has done well in limited use. I have a can of RL-25, but I haven't fiddled with it.

Chris