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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
260/6.5-308 AI
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<blockquote data-quote="jebel" data-source="post: 2277966" data-attributes="member: 106189"><p>I don't think you'll find an appreciable difference in muzzle velocity between twist rates from 7 to 8. And muzzle velocity isn't affected by elevation, though downrange velocity is (irrespective of twist). If the 140 or 147 ELDM is your chosen bullet, then 8 twist will stabilize it just fine. If you wanted to shoot a longer bullet, you might need faster. For example, to shoot the 137gr Hammer Hunter, you'd need a 7 twist.</p></blockquote><p></p>
[QUOTE="jebel, post: 2277966, member: 106189"] I don't think you'll find an appreciable difference in muzzle velocity between twist rates from 7 to 8. And muzzle velocity isn't affected by elevation, though downrange velocity is (irrespective of twist). If the 140 or 147 ELDM is your chosen bullet, then 8 twist will stabilize it just fine. If you wanted to shoot a longer bullet, you might need faster. For example, to shoot the 137gr Hammer Hunter, you'd need a 7 twist. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
260/6.5-308 AI
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