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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet RPM and performance
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<blockquote data-quote="Grumpy old man" data-source="post: 2525090" data-attributes="member: 116449"><p>The purpose of say faster spin is bullet stabilization a 85 gr bullet doesn't need a fast spun barrel to stabilize, 112 gr bullet needs it a 6.5 153.5 gr bullet needs a least a 1 8 or 1 7.5 twist to stabilize cause it pencils !Some bullets that are not solid lead will come apart easier than others fragmenting so spinning fast 3000 +fps tells me from experience to get a projectile that can hold together at that velocity ! That speed turning to fast will fragment the projectile if it's construction is susceptible to coming apart!</p></blockquote><p></p>
[QUOTE="Grumpy old man, post: 2525090, member: 116449"] The purpose of say faster spin is bullet stabilization a 85 gr bullet doesn't need a fast spun barrel to stabilize, 112 gr bullet needs it a 6.5 153.5 gr bullet needs a least a 1 8 or 1 7.5 twist to stabilize cause it pencils !Some bullets that are not solid lead will come apart easier than others fragmenting so spinning fast 3000 +fps tells me from experience to get a projectile that can hold together at that velocity ! That speed turning to fast will fragment the projectile if it's construction is susceptible to coming apart! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet RPM and performance
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