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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Spin and Performance
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<blockquote data-quote="Fiftydriver" data-source="post: 248590" data-attributes="member: 10"><p>My only concern with trying to duplicate long range impacts with lower velocity is the fact that RPM levels are dramatically less. Does this make a huge difference, again, with a big game bullet or SMK, more likely then not, not enough to measure in the test.</p><p> </p><p>I do feel that it certainly does effect the stability of the bullet, if not in flight, certainly after penetration. If a bullet, say a 300 gr SMK impacts but begins to tumble or at least yaw and this will not allow the bullet to expand consistantly, at least to my way of thinking compared to a higher RPM impact where the bullet will be far more stable as it impacts and penetrates through the animal.</p><p> </p><p>Again, this is more theory on my part then anything and in most cases its not practical to do actual testing at true long range so this may be the only way to do this other then to get a faster twist barrel to match the RPM levels which again, just is not practical for us to do financially.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 248590, member: 10"] My only concern with trying to duplicate long range impacts with lower velocity is the fact that RPM levels are dramatically less. Does this make a huge difference, again, with a big game bullet or SMK, more likely then not, not enough to measure in the test. I do feel that it certainly does effect the stability of the bullet, if not in flight, certainly after penetration. If a bullet, say a 300 gr SMK impacts but begins to tumble or at least yaw and this will not allow the bullet to expand consistantly, at least to my way of thinking compared to a higher RPM impact where the bullet will be far more stable as it impacts and penetrates through the animal. Again, this is more theory on my part then anything and in most cases its not practical to do actual testing at true long range so this may be the only way to do this other then to get a faster twist barrel to match the RPM levels which again, just is not practical for us to do financially. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Spin and Performance
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