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Long Range Hunting & Shooting
308 Winchester rifling twist
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<blockquote data-quote="diriel" data-source="post: 450732" data-attributes="member: 26983"><p>For the 168 / 175 I would for sure go with a 12 twist.</p><p></p><p>That being said, Montanamarine over on snipershide has been using a 308 with a 12 twist with the 208gr amax to fairly good success. Several key factors are involved however. His ASL where he shoots / hunts is up around 4000ft or so, this is one of the bigger factors. He uses RL 17 to get the bullet moving right along. He uses Win brass and I think win LR primers, the brass has more case capacity than most others, so more powder. He also uses moly on his bullets. I think he also seats them beyond mag length, and single feeds them, though I could be wrong on this count. I would be the new Alliant MR2000 powder would do quite well. Short story is, they are probably right on the edge of stability.</p><p></p><p>For your stated needs, go 12 twist and don't look back. I think Howa has a 12 twist, certainly worth looking into if you do not already have a stick.</p><p></p><p>Have a good one,</p><p>Gary</p></blockquote><p></p>
[QUOTE="diriel, post: 450732, member: 26983"] For the 168 / 175 I would for sure go with a 12 twist. That being said, Montanamarine over on snipershide has been using a 308 with a 12 twist with the 208gr amax to fairly good success. Several key factors are involved however. His ASL where he shoots / hunts is up around 4000ft or so, this is one of the bigger factors. He uses RL 17 to get the bullet moving right along. He uses Win brass and I think win LR primers, the brass has more case capacity than most others, so more powder. He also uses moly on his bullets. I think he also seats them beyond mag length, and single feeds them, though I could be wrong on this count. I would be the new Alliant MR2000 powder would do quite well. Short story is, they are probably right on the edge of stability. For your stated needs, go 12 twist and don't look back. I think Howa has a 12 twist, certainly worth looking into if you do not already have a stick. Have a good one, Gary [/QUOTE]
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308 Winchester rifling twist
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