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Hunting
Long Range Hunting & Shooting
Effect of Bullet Spin on Terminal Performance
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<blockquote data-quote="yorke-1" data-source="post: 1694940" data-attributes="member: 11960"><p>I've done a fair bit if bullet testing and based on what I've seen, greater stability (a function of RPMs) has a significant impact on terminal performance. With spitzer style bullets it seems like roughly 190,000 RPMs on the low end is the magic number to get consistent and predictable expansion and penetration. This is dependent on bullet design though.</p><p></p><p>Large bore dangerous game bullets function well at lower RPMs but there's still a strong following for using fast twist barrels on DG rifles to provide straighter penetration with solids.</p></blockquote><p></p>
[QUOTE="yorke-1, post: 1694940, member: 11960"] I’ve done a fair bit if bullet testing and based on what I’ve seen, greater stability (a function of RPMs) has a significant impact on terminal performance. With spitzer style bullets it seems like roughly 190,000 RPMs on the low end is the magic number to get consistent and predictable expansion and penetration. This is dependent on bullet design though. Large bore dangerous game bullets function well at lower RPMs but there’s still a strong following for using fast twist barrels on DG rifles to provide straighter penetration with solids. [/QUOTE]
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Effect of Bullet Spin on Terminal Performance
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