• New Contest Starting Now! This Target Haunts Me

    Tell us about the one that got away, the flier that ruined your group, the zero that drifted, the shot you still see when you close your eyes. Winner will receive a free scope!

    Join contest

300 grain SMK in 338 LM question

Dustin Morris

Sergeant
Full Member
Minuteman
Aug 26, 2008
393
1
Rayville,LA
I have a 9.5 twist krieger barrel on a surgeon xl action. I found a load that will shoot the 300 grainers pretty well it's imr 4350 but the velocity is only 2650 fps. I was wondering if any one else has any loads that are faster than this that will shoot 1/2 moa or better. Trying to find a load to shoot to a mile is the ultimate goal. I'm at 85 asl.

Thanks,
Dustin
 
Re: 300 grain SMK in 338 LM question

I have two loads that do very well out my rifle, Surgeon XL action, 1-10 twist with a 28" barrel built by GAP. I am using Retumbo and US869, I am getting 2850 fps with the US869 and the 300gr SMKs, and 2770 fps with Retumbo. I have ben using the US869 load more. Retumbo is listed as extrem powder and US869 is not. 10 shot groups are one ragged hole at a 100 yrds with both laods.
 
Re: 300 grain SMK in 338 LM question

I'm reading alot of success stories about the 338LM and Retumbo. Does anyone know if that is the powder of choice with a 338 lapua AI shooting 300gr. pills?
 
Re: 300 grain SMK in 338 LM question

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: samson</div><div class="ubbcode-body">I'm reading alot of success stories about the 338LM and Retumbo. Does anyone know if that is the powder of choice with a 338 lapua AI shooting 300gr. pills? </div></div>

Retumbo and RL-25 are pretty popular for the 300gr SMKs (Scenars?). VV-170 and H-1000 would be good, slow powders among the others listed. I shoot 250s, so the ultra slow powders aren't totally necessary, so H-4831sc and VV-165 are two that my TRG-42 likes with the Scenars and SMKs.

My advice is to load to your specific range that you plan on shooting. I shoot out to 1000 yards so I don't need to load the 300s, nor do I have to load hot.

Don't burn out your throat if you don't have to. An extra MOA here or there is nothing to worry about, rebarreling a 338LM rifle is.

Chris









 
You must be at least 18 years of age to use this site
You confirm that you are at least 18 years of age by continuing to use the site.