Owen Sparks
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- May 27, 2007
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We all know that the more aerodynamic a bullet is, the less drag is imposed on it by the air. But even bullets with the highest ballistic coefficient loose a lot of velocity when fired at very distant targets at 500 or 1,000 yards.
This made me wonder, does the rotational spin imparted to a bullet by the rifling slow down at extreme ranges also? Suppose I were to fire a bullet that required a 1 in 10" twist for optimal accuracy. Ar 6 or 8 hundred yards is this bullet still spinning as fast? We know it's velocity has dropped substantially.
Could a bullets spin eventually slow down enough that it becomes unstable in flight and starts to yaw or tumble? Or does the rate of spin slow proportionally with the velocity so that accuracy is unaffected?
Just Curious, OS
This made me wonder, does the rotational spin imparted to a bullet by the rifling slow down at extreme ranges also? Suppose I were to fire a bullet that required a 1 in 10" twist for optimal accuracy. Ar 6 or 8 hundred yards is this bullet still spinning as fast? We know it's velocity has dropped substantially.
Could a bullets spin eventually slow down enough that it becomes unstable in flight and starts to yaw or tumble? Or does the rate of spin slow proportionally with the velocity so that accuracy is unaffected?
Just Curious, OS