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Rifles, Reloading, Optics, Equipment
Reloading
6.5-06 vs 6.5X284 vs 6.5 Sherman
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<blockquote data-quote="Bart B" data-source="post: 560181" data-attributes="member: 5302"><p>Sierra Bullets may well be the outfit that's done more tests in this area than any other. They do say that most bullets are stable (flying down range with their long axis parallel to the trajectory path) by 100 yards. But there are some combinations of bullet, muzzle velocity and twist that doesn't allow the bullet to stabilize until further down range.</p><p></p><p>Over stabilized bullets are typically those that are shot too fast for the rifling twist and spin so darned fast their very slight unbalance is enough to cause the centrifugal forces built up that they wobble way too much all the way to the target. Such bullets are usually not too accurate. </p><p></p><p>On the other hand, very well balanced bullets can be shot such that their spin rate in rpm's is much more than needed and they'll still shoot very accurate. But they will have more spin drift as range increases.</p></blockquote><p></p>
[QUOTE="Bart B, post: 560181, member: 5302"] Sierra Bullets may well be the outfit that's done more tests in this area than any other. They do say that most bullets are stable (flying down range with their long axis parallel to the trajectory path) by 100 yards. But there are some combinations of bullet, muzzle velocity and twist that doesn't allow the bullet to stabilize until further down range. Over stabilized bullets are typically those that are shot too fast for the rifling twist and spin so darned fast their very slight unbalance is enough to cause the centrifugal forces built up that they wobble way too much all the way to the target. Such bullets are usually not too accurate. On the other hand, very well balanced bullets can be shot such that their spin rate in rpm's is much more than needed and they'll still shoot very accurate. But they will have more spin drift as range increases. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
6.5-06 vs 6.5X284 vs 6.5 Sherman
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