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1/22/2020 12:12:56 PM
Posted: 7/19/2008 8:50:42 AM EST
Hi, I'm new to the forum here but have been lurking for sometime. Finally got around to signing up.This site has been a wonderful resource! Anyways, onto the question at hand.My father recently purchased a LRB M14SA Rear lugged receiver and shipped it off to Fulton Armory to build the rifle for him. They are going to be installing a stainless Krieger barrel.The question is what twist rate should he ask for in the barrel? The rifle will be used to shoot everything from 100yds out to 1000 yds. He already has some 147 grain ball ammo(2000 rds)and plans on ordering some heavier 175 gr (I believe) ammo for shooting at the longer ranges.What twist barrels are you guys using in your custom builds and how well do they shoot the different weight bullets? FYI, we were thinking about a 1in10 twist. What say you?TIA for any help you can give us!!!
Link Posted: 7/19/2008 9:05:39 AM EST
[Last Edit: 7/19/2008 9:06:24 AM EST by Tazaroo]
1 in 10 for sure...............without a doubt.

Edited to greet new member..............Hi and welcome!
Link Posted: 7/19/2008 1:29:46 PM EST

Originally Posted By Tazaroo:
1 in 10 for sure...............without a doubt.

Edited to greet new member..............Hi and welcome!


+1

I might be tempted to do an 11.25 in an M1A, but 1-10 will work just fine.
Link Posted: 7/19/2008 2:14:51 PM EST
I shot a 1:10" till it gave up. Now I shoot a 1:12" Kreiger. My next barrel will be a 1:12". I shoot a lot of 125's and the rest 155, 168 and 175grs. The 1:10" can be hit or miss with any bullet under 168grs.

147gr through a Kreiger?
Link Posted: 7/20/2008 7:51:15 AM EST
So from what you guys have said, would a 1in11 twist be a better choice? I've always heard it is better to have to fast of a twist rate than to slow of one.

30caliber, how does your 1in12 barrel shoot the heavier weight bullets? I assume you meant shooting 147gr bullets out of a Krieger is a waste of a good barrel,correct?

Thanks for the help guys and let's hear some more on the subject!!
Link Posted: 7/20/2008 8:08:55 AM EST
[Last Edit: 7/20/2008 8:13:01 AM EST by 30Caliber]

Originally Posted By va50bmg:
So from what you guys have said, would a 1in11 twist be a better choice? I've always heard it is better to have to fast of a twist rate than to slow of one.

30caliber, how does your 1in12 barrel shoot the heavier weight bullets? I assume you meant shooting 147gr bullets out of a Krieger is a waste of a good barrel,correct?

Thanks for the help guys and let's hear some more on the subject!!


My 1:12" does well with pretty much every decent bullet I've fed it up to the 178gr AMax bullet. About the only ones I was disappointed in were the 155gr Lapua (with it's short jump requirements, it's a poor M1A bullet anyhow) and the 173gr FMJ "match" (which is just not a very good bullet to begin with).

The 1:10" was what the big service teams were using when the AR took over the scene. Everyone looks at the teams and says, "well, I'd better do the same thing." So, the match M14 has remained in this cryogenic state since 1997. What people don't take into account is that the teams were building specialty rifles to shoot 175's and 190's.

If the 175 was the only bullet you're ever going to shoot, then 1:10" is a fine choice.


I wouldn't turn my nose up at a Douglas barrel either. They won't last as long, but man, the 1:10" that came on my Supermatch shot 168's like a house on fire.
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