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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel makers/rifle makers true barrel twist rate
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<blockquote data-quote="JAYgs8163" data-source="post: 2704935" data-attributes="member: 37460"><p>The length of the barrel has no effect on calculating his twist rate. You only need a 10" section of barrel to calculate a twist rate of 1:10. The only time the length of the barrel comes into play is when the barrel is shorter than the stated twist rate. For instance checking twist rate in my MuzzleLoader could be a PITA as it's stated 1/22 but the barrel is only 20". So now you'd have to some math and reduce your ratios. In the case of measuring my Muzzy I would need to measure it as 1/2:11. 1/2 a revolution in 11". Anyways…..</p></blockquote><p></p>
[QUOTE="JAYgs8163, post: 2704935, member: 37460"] The length of the barrel has no effect on calculating his twist rate. You only need a 10” section of barrel to calculate a twist rate of 1:10. The only time the length of the barrel comes into play is when the barrel is shorter than the stated twist rate. For instance checking twist rate in my MuzzleLoader could be a PITA as it’s stated 1/22 but the barrel is only 20”. So now you’d have to some math and reduce your ratios. In the case of measuring my Muzzy I would need to measure it as 1/2:11. 1/2 a revolution in 11”. Anyways….. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Barrel makers/rifle makers true barrel twist rate
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