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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel Length and Barrel Volume
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<blockquote data-quote="jtmoose" data-source="post: 1165613" data-attributes="member: 87081"><p>How much does barrel volume effect barrel length and velocity variation? I was considering building a short barrel (<20") magnum. Everything I've read comments about barrel length affecting velocity but I assume that a larger bore would reduce the effects of a shorter barrel. </p><p></p><p>For example, a 28" .243 has a little less barrel volume than an 18" .308 barrel. I would assume that if a 26" barrel for a .257 Weatherby Magnum (same volume also) is adequate, an 18" 300wsm would burn similarly.</p><p></p><p>Am I missing something, is it only about length and not volume? Is this also why the larger calibers are "inherently more accurate"? Does their larger barrel volume burn more efficiently just like a fatter case does?</p></blockquote><p></p>
[QUOTE="jtmoose, post: 1165613, member: 87081"] How much does barrel volume effect barrel length and velocity variation? I was considering building a short barrel (<20") magnum. Everything I've read comments about barrel length affecting velocity but I assume that a larger bore would reduce the effects of a shorter barrel. For example, a 28" .243 has a little less barrel volume than an 18" .308 barrel. I would assume that if a 26" barrel for a .257 Weatherby Magnum (same volume also) is adequate, an 18" 300wsm would burn similarly. Am I missing something, is it only about length and not volume? Is this also why the larger calibers are "inherently more accurate"? Does their larger barrel volume burn more efficiently just like a fatter case does? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel Length and Barrel Volume
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