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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel twist effect pressure?
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<blockquote data-quote="tim_w" data-source="post: 1338257" data-attributes="member: 11132"><p>It's effect can also vary based on caliber, bullet bearing surface, etc. Rifling llands size (ratio to groove area) and then type and configure has more of an effect. Used in combo along with bore surface treatment it can increase vel and lower pressure but for most the extra my not be worth the extra time cost and headache.</p><p></p><p>We did a fairly good amount of testing with many different rifling and twist configure using barrel pressure testing and chronograph equipment.</p></blockquote><p></p>
[QUOTE="tim_w, post: 1338257, member: 11132"] It's effect can also vary based on caliber, bullet bearing surface, etc. Rifling llands size (ratio to groove area) and then type and configure has more of an effect. Used in combo along with bore surface treatment it can increase vel and lower pressure but for most the extra my not be worth the extra time cost and headache. We did a fairly good amount of testing with many different rifling and twist configure using barrel pressure testing and chronograph equipment. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Barrel twist effect pressure?
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