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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Rebarreling a 308
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<blockquote data-quote="codyadams" data-source="post: 1153815" data-attributes="member: 87243"><p>I should specify, MY .308. My rifle has a 1 in 12 twist, and I cant get the heavier bullets to shoot well. I'm also limited on velocity, as I only have a 20" barrel. I use 168 A-MAX bullets (bc of .475) and about the best velocity I have been able to get with accuracy is 2675. A 208 A-MAX sure as heck wouldn't be going no 2600 out of my gun ha ha. </p><p></p><p>My current rifle, compared to a 260 AI with a 30" barrel like I'm getting, is a big difference. My bad, I should have specified.</p><p></p><p>.308 w/168 A-MAX@2675 1000yd Ballistics:</p><p></p><p>6600FT elevation</p><p></p><p>Elevation MOA: 32.25</p><p>Windage MOA (10MPH): 7.21 </p><p>Retained ft-lb: 747</p><p>Retained Velocity: 1415</p><p></p><p>260 AI w/140 VLD@2975 1000yd Ballistics:</p><p></p><p>Elevation MOA: 22.17</p><p>Windage MOA (10MPH): 4.39</p><p>Retained ft-lb: 1107</p><p>Retained Velocity: 1887</p><p></p><p>Not quite double, but still a large difference from my rifle to what I'm building it into. Sorry for the confusion</p></blockquote><p></p>
[QUOTE="codyadams, post: 1153815, member: 87243"] I should specify, MY .308. My rifle has a 1 in 12 twist, and I cant get the heavier bullets to shoot well. I'm also limited on velocity, as I only have a 20" barrel. I use 168 A-MAX bullets (bc of .475) and about the best velocity I have been able to get with accuracy is 2675. A 208 A-MAX sure as heck wouldn't be going no 2600 out of my gun ha ha. My current rifle, compared to a 260 AI with a 30" barrel like I'm getting, is a big difference. My bad, I should have specified. .308 w/168 A-MAX@2675 1000yd Ballistics: 6600FT elevation Elevation MOA: 32.25 Windage MOA (10MPH): 7.21 Retained ft-lb: 747 Retained Velocity: 1415 260 AI w/140 VLD@2975 1000yd Ballistics: Elevation MOA: 22.17 Windage MOA (10MPH): 4.39 Retained ft-lb: 1107 Retained Velocity: 1887 Not quite double, but still a large difference from my rifle to what I'm building it into. Sorry for the confusion [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Rebarreling a 308
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