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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 PRC Build . . . What twist rate are you finding successful?
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<blockquote data-quote="Sam Pace" data-source="post: 2037246" data-attributes="member: 110365"><p>Thank you. I have Litz's work on ballistic performance. His page on the 225 ELDM indicates a 1:8" will have a nominal stability factor of 2.12 and so it seems like it would operate outside of the window according to Robinetts. 1:9" has a best case of 1.92 and worst case of 1.45 stability factors. So, my 1:9" twist rate seems optimal . . . at least in theory on paper! </p><p></p><p>Thanks Sherm!</p></blockquote><p></p>
[QUOTE="Sam Pace, post: 2037246, member: 110365"] Thank you. I have Litz's work on ballistic performance. His page on the 225 ELDM indicates a 1:8" will have a nominal stability factor of 2.12 and so it seems like it would operate outside of the window according to Robinetts. 1:9" has a best case of 1.92 and worst case of 1.45 stability factors. So, my 1:9" twist rate seems optimal . . . at least in theory on paper! Thanks Sherm! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 PRC Build . . . What twist rate are you finding successful?
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