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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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<blockquote data-quote="RockyMtnMT" data-source="post: 478651" data-attributes="member: 7999"><p>After finally catching up and reading all the posts, I don't have any answers, only more questions.</p><p> </p><p>What effect does the particular twist of a specific barrel inducing a stability factor on a bullet, which induces a particular amount of yaw on the bullet, do to the bc? Knowing that a 10 twist button rifle is not exactly 10 twist. If a bullet experiences varying degrees of yaw based on the specific twist and velocity it must create a differing amount of drag. If a bullet is not hitting the atmosphere directly point on then the side of the bullet induces a different amount of drag. So the way I see it a bullet that has been shot with a higher stability factor will have more drag than that of the same bullet shot with a lower stability factor because of the bullet nose orientation upward.</p><p> </p><p>Could this be the source for different bc's being noticed out of different rifles shooting the same bullet at different velocities?</p><p> </p><p>I don't know if that made sense, but I tried.</p><p> </p><p>Steve</p></blockquote><p></p>
[QUOTE="RockyMtnMT, post: 478651, member: 7999"] After finally catching up and reading all the posts, I don't have any answers, only more questions. What effect does the particular twist of a specific barrel inducing a stability factor on a bullet, which induces a particular amount of yaw on the bullet, do to the bc? Knowing that a 10 twist button rifle is not exactly 10 twist. If a bullet experiences varying degrees of yaw based on the specific twist and velocity it must create a differing amount of drag. If a bullet is not hitting the atmosphere directly point on then the side of the bullet induces a different amount of drag. So the way I see it a bullet that has been shot with a higher stability factor will have more drag than that of the same bullet shot with a lower stability factor because of the bullet nose orientation upward. Could this be the source for different bc's being noticed out of different rifles shooting the same bullet at different velocities? I don't know if that made sense, but I tried. Steve [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's argue about BC's
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