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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel life consideration
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<blockquote data-quote="Truc" data-source="post: 936710" data-attributes="member: 44771"><p>300 Blackout, hmmm whats the case capacity? I shoot a 30 BR in Comp and got close to 8000 rounds before accuracy drop below Benchrest quality. Seems the 300 would be at least that but probably more.</p><p> Somewhere I once saw, small bore burning slow powder is a barrel killer, large caliber burning fast powder, long life. This proved very true in my 30 BR. I shot a group in a match at 300 yds that measured .436" for 5 shots with moving backers (no way to cheat) dead center of the moth ball. The 30 BR shoots H-4198 or N-130. My load was 37 gr w/ a 108 gr bullet which shot it at 3200 fps. That 300 yd group had over 6000 rds on it by then, it was a Krieger</p></blockquote><p></p>
[QUOTE="Truc, post: 936710, member: 44771"] 300 Blackout, hmmm whats the case capacity? I shoot a 30 BR in Comp and got close to 8000 rounds before accuracy drop below Benchrest quality. Seems the 300 would be at least that but probably more. Somewhere I once saw, small bore burning slow powder is a barrel killer, large caliber burning fast powder, long life. This proved very true in my 30 BR. I shot a group in a match at 300 yds that measured .436" for 5 shots with moving backers (no way to cheat) dead center of the moth ball. The 30 BR shoots H-4198 or N-130. My load was 37 gr w/ a 108 gr bullet which shot it at 3200 fps. That 300 yd group had over 6000 rds on it by then, it was a Krieger [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
Barrel life consideration
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