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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm wsm twist rate
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<blockquote data-quote="FEENIX" data-source="post: 1414802" data-attributes="member: 14204"><p>That depends on how fast you can push it and what altitude you're at or your hunting grounds. For instance, I have .300 WSM with 1:10" twist and the Berger 215 calls for a 1:9" twist. I am pushing it at 2750 FPS out of 24" barrel"</p><p></p><p>@ 0' altitude, SG is marginal at 1.47 (1.5 or higher is ideal).</p><p>@ 3333' altitude (my home/range) SG is comfortable at 1.67.</p><p>@ 7500' altitude (elk hunting grounds) SG is comfortable 1.95.</p><p></p><p>Try <a href="http://www.bergerbullets.com/twist-rate-calculator/" target="_blank">http://www.bergerbullets.com/twist-rate-calculator/</a></p><p></p><p>Good luck!</p></blockquote><p></p>
[QUOTE="FEENIX, post: 1414802, member: 14204"] That depends on how fast you can push it and what altitude you're at or your hunting grounds. For instance, I have .300 WSM with 1:10" twist and the Berger 215 calls for a 1:9" twist. I am pushing it at 2750 FPS out of 24" barrel" @ 0' altitude, SG is marginal at 1.47 (1.5 or higher is ideal). @ 3333' altitude (my home/range) SG is comfortable at 1.67. @ 7500' altitude (elk hunting grounds) SG is comfortable 1.95. Try [URL]http://www.bergerbullets.com/twist-rate-calculator/[/URL] Good luck! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm wsm twist rate
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