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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
revolutions per minute debate
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<blockquote data-quote="Richard338" data-source="post: 69263" data-attributes="member: 1537"><p>GG, I'm surprised to hear that you found conflicting info. Classical physics is well understood. The best book I've found is McCoy's book on Modern exterior ballistics. I work in science, not in this area, so this doesn't make me an expert, but I was able to read and understand McCoys book as well as the next guy.</p><p>Your original question was "will the bullet spin more or less than 4 1/2 times in the 786th yard". The answer is MORE. I think it is easy to imagine the translational velocity decaying more quickly than the rotational. The reason that they call 6 DOF calculations six degrees of freedom is because there ARE 6 degrees of freedom. This means that one component of the velocity doesn't have to be fixed by one component of the rotational freedom.</p></blockquote><p></p>
[QUOTE="Richard338, post: 69263, member: 1537"] GG, I'm surprised to hear that you found conflicting info. Classical physics is well understood. The best book I've found is McCoy's book on Modern exterior ballistics. I work in science, not in this area, so this doesn't make me an expert, but I was able to read and understand McCoys book as well as the next guy. Your original question was "will the bullet spin more or less than 4 1/2 times in the 786th yard". The answer is MORE. I think it is easy to imagine the translational velocity decaying more quickly than the rotational. The reason that they call 6 DOF calculations six degrees of freedom is because there ARE 6 degrees of freedom. This means that one component of the velocity doesn't have to be fixed by one component of the rotational freedom. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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revolutions per minute debate
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