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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Transitional/Progressive/Gain Twist Barrels aid in accuracy?
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<blockquote data-quote="J E Custom" data-source="post: 1030114" data-attributes="member: 2736"><p>I like to think outside of the box and had considered gain twist for several builds. so first I read everything I could find on it by experts and could not find one single source that could/did prove</p><p>it was an improvement in any bullet weight or size some of this testing led to the smooth bore</p><p>and fins on bullets(They proved to be better than any kind of rifling). </p><p></p><p>Size has nothing to do with the effectiveness of the gain twist rifling, in fact this was where it was thought to do better, because in theory it would solve some of the problems with shear. </p><p></p><p>It was tried in the really big guns because it was thought that the starting inertia of bullets weighting 3,000 or 4,000 lbs + was one of the accuracy problems. It didn't help/improve the accuracy.</p><p></p><p>More lands and groves and slower twist was the best.</p><p></p><p>On the bigger bore rifles .375 to .510 a 6 or 8 groove 14 or 15 twist is recommended. </p><p></p><p>Gain twist sounds good, but it has yet to be proven as good or better than regular/conventional </p><p>twist, At least to me or I would have several rifles with it.</p><p></p><p>I am not against it, In fact, I would like to see more people try it and post the proof that it was better.</p><p></p><p>Just an opinion.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1030114, member: 2736"] I like to think outside of the box and had considered gain twist for several builds. so first I read everything I could find on it by experts and could not find one single source that could/did prove it was an improvement in any bullet weight or size some of this testing led to the smooth bore and fins on bullets(They proved to be better than any kind of rifling). Size has nothing to do with the effectiveness of the gain twist rifling, in fact this was where it was thought to do better, because in theory it would solve some of the problems with shear. It was tried in the really big guns because it was thought that the starting inertia of bullets weighting 3,000 or 4,000 lbs + was one of the accuracy problems. It didn't help/improve the accuracy. More lands and groves and slower twist was the best. On the bigger bore rifles .375 to .510 a 6 or 8 groove 14 or 15 twist is recommended. Gain twist sounds good, but it has yet to be proven as good or better than regular/conventional twist, At least to me or I would have several rifles with it. I am not against it, In fact, I would like to see more people try it and post the proof that it was better. Just an opinion. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Transitional/Progressive/Gain Twist Barrels aid in accuracy?
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