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Rifles, Reloading, Optics, Equipment
Reloading
Berger Jacket Limitations with Velocity?
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<blockquote data-quote="brant89" data-source="post: 2120731" data-attributes="member: 49553"><p>Because the rpm's are going up with the velocity. If you increase the velocity but reduce the twist rate so that the rpms stay the same, the stability will go down. For example, if you push a 88eld 2912fps from a 7 twist you get 300,000rpm and a SF of 1.759. If you go with an 8 twist to stay below that 300,000rpm number you can push it 3333fps, but your SF is only 1.409.</p></blockquote><p></p>
[QUOTE="brant89, post: 2120731, member: 49553"] Because the rpm’s are going up with the velocity. If you increase the velocity but reduce the twist rate so that the rpms stay the same, the stability will go down. For example, if you push a 88eld 2912fps from a 7 twist you get 300,000rpm and a SF of 1.759. If you go with an 8 twist to stay below that 300,000rpm number you can push it 3333fps, but your SF is only 1.409. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Berger Jacket Limitations with Velocity?
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