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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet rotation vs velocity
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<blockquote data-quote="Varminator 911" data-source="post: 220773" data-attributes="member: 9705"><p>What I've heard is that rpms don't drop much with distance. There's not much to slow down the spin other than the roughness of rifling engraved on the bullet. Would seem to be a pretty hard number to measure. But guess you could use a high speed camera.</p><p> </p><p>I'm thinking it's important to get the needed rpm out the muzzle. When the speed has dropped to half muzzle velocity, the rpm is probably much above half. That's my thought anyway.</p></blockquote><p></p>
[QUOTE="Varminator 911, post: 220773, member: 9705"] What I've heard is that rpms don't drop much with distance. There's not much to slow down the spin other than the roughness of rifling engraved on the bullet. Would seem to be a pretty hard number to measure. But guess you could use a high speed camera. I'm thinking it's important to get the needed rpm out the muzzle. When the speed has dropped to half muzzle velocity, the rpm is probably much above half. That's my thought anyway. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet rotation vs velocity
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