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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Twist rate vs velocity
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<blockquote data-quote="Mikecr" data-source="post: 283376" data-attributes="member: 1521"><p>I don't see how this could be reduced to a rule with any accuracy. </p><p>Afterall, there are so many other variables affecting velocity along with twist..</p><p></p><p>One cal and cartridge might react to twist differences to a greater/lessor degree than the same cal in another cartridge(or even another barrel of same twist). Different powders and system pressure curves.. </p><p></p><p>So it wouldn't just be a matter of adding/subtracting energy converted to torque.</p><p>I don't even know that you could predict whether velocity would go up, or down, when comparing 6ppc -vs- 6-06 for different twists. The powders and pressure curves(and usually barrel lengths) are so different.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 283376, member: 1521"] I don't see how this could be reduced to a rule with any accuracy. Afterall, there are so many other variables affecting velocity along with twist.. One cal and cartridge might react to twist differences to a greater/lessor degree than the same cal in another cartridge(or even another barrel of same twist). Different powders and system pressure curves.. So it wouldn't just be a matter of adding/subtracting energy converted to torque. I don't even know that you could predict whether velocity would go up, or down, when comparing 6ppc -vs- 6-06 for different twists. The powders and pressure curves(and usually barrel lengths) are so different. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Twist rate vs velocity
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