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Outfitters - Long Range Friendly
Prairie Dogs and Coyotes
best bullet in 6mm for prairiedogs
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<blockquote data-quote="SupressYourself" data-source="post: 2768024" data-attributes="member: 100820"><p>I was using 42.8 grains of H4895. I think they were running like 3850 out of a 9.25 twist 20 inch barrel. </p><p></p><p>With your 26" speed demon 8 twists, you might be pushing into bullet explosion (jacket separation) territory. It certainly varies by bullet, but traditionally, 300,000 RPMs was considered the "safe" limit. I'm right at that with my combo.</p><p></p><p>Bullet RPM = MV * (12 / twist rate) * 60</p><p>Example: 3850 * (12 / 9.25) * 60 = 299,675 RPM</p><p></p><p>I think you might want to look into running a heavier bullet slower. My brother has shot the 75 v-max out of a 8 twist 6 Creed, and that seems to be a good combo on p-dogs.</p></blockquote><p></p>
[QUOTE="SupressYourself, post: 2768024, member: 100820"] I was using 42.8 grains of H4895. I think they were running like 3850 out of a 9.25 twist 20 inch barrel. With your 26" speed demon 8 twists, you might be pushing into bullet explosion (jacket separation) territory. It certainly varies by bullet, but traditionally, 300,000 RPMs was considered the "safe" limit. I'm right at that with my combo. Bullet RPM = MV * (12 / twist rate) * 60 Example: 3850 * (12 / 9.25) * 60 = 299,675 RPM I think you might want to look into running a heavier bullet slower. My brother has shot the 75 v-max out of a 8 twist 6 Creed, and that seems to be a good combo on p-dogs. [/QUOTE]
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Outfitters - Long Range Friendly
Prairie Dogs and Coyotes
best bullet in 6mm for prairiedogs
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