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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
308 ammo for elk (barrel length)
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<blockquote data-quote="rustyshackleford" data-source="post: 2356160" data-attributes="member: 59526"><p>Just realized I really didn't answer your question. I was basically extrapolating. Bryan Litz shared an equation on the PRS blog that allows you to estimate velocities when subbing in different bullet weights. </p><p></p><p>V2 = V1*(B1/B2)^0.5 so V2 in this case would be a 165 and B1 is 185 gr and V1 is 2585. From my 20" barrel you'd get an estimated equivalent velocity at 2737 ft/sec. A 150 should hit ~2850 from a 20" barrel and a 165 would likely need a 22-24" barrel to break 2800</p></blockquote><p></p>
[QUOTE="rustyshackleford, post: 2356160, member: 59526"] Just realized I really didn’t answer your question. I was basically extrapolating. Bryan Litz shared an equation on the PRS blog that allows you to estimate velocities when subbing in different bullet weights. V2 = V1*(B1/B2)^0.5 so V2 in this case would be a 165 and B1 is 185 gr and V1 is 2585. From my 20” barrel you’d get an estimated equivalent velocity at 2737 ft/sec. A 150 should hit ~2850 from a 20” barrel and a 165 would likely need a 22-24” barrel to break 2800 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
308 ammo for elk (barrel length)
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