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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
revolutions per minute debate
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<blockquote data-quote="LB" data-source="post: 69302" data-attributes="member: 2721"><p>The only thing I see that has not been nailed down is the imprinted rifling marks on the bullet, necessary to impart the spin in the first place, but they appear to be a mechanical brake, of sorts; in free air. I would think that the muzzle RPS would actually degrade enough at a thousand yards, so that, perhaps.....</p><p></p><p> [ QUOTE ]</p><p>It doesn't fall off much because the only things slowing it down are inertia and skin friction drag which is pretty low, so the rotational velocity is only slightly slower than 3600 rps </p><p> </p><p></p><p>[/ QUOTE ]</p><p></p><p>....the above may not be perfectly true? </p><p></p><p>Am I way off base? Skin friction drag, wise?</p><p></p><p>Good hunting. LB</p></blockquote><p></p>
[QUOTE="LB, post: 69302, member: 2721"] The only thing I see that has not been nailed down is the imprinted rifling marks on the bullet, necessary to impart the spin in the first place, but they appear to be a mechanical brake, of sorts; in free air. I would think that the muzzle RPS would actually degrade enough at a thousand yards, so that, perhaps..... [ QUOTE ] It doesn't fall off much because the only things slowing it down are inertia and skin friction drag which is pretty low, so the rotational velocity is only slightly slower than 3600 rps [/ QUOTE ] ....the above may not be perfectly true? Am I way off base? Skin friction drag, wise? Good hunting. LB [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
revolutions per minute debate
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