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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help deciding on 2 builds
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<blockquote data-quote="Bart B" data-source="post: 1161791" data-attributes="member: 5302"><p>In the days when the Win 70's and Rem 700's were used to win and set records in high power match rifle events, nobody used a fluted barrel in them. They didn't want to take any chances of an otherwise very accurate barrel's results would be reduced.</p><p></p><p>No, I'm not saying that. All barrels erode their throat/leade increasing its distance from the breech face. It varies from 5 to 50 shots per thousandth of an inch. My .308's eroded the rifling about 35 to 40 shots per .001"; my .264 Win Mag about 6 to 8 shots per .001".</p><p></p><p>.070" to .100" of throat erosion doesn't hurt accuracy very much. A .308 Win. erodes about that much and starting out at 1/4 MOA average for 10-shot groups at 100 yards will degrade to about 1/2 MOA after .100" of throat erosion over 4000 to 5000 rounds.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1161791, member: 5302"] In the days when the Win 70's and Rem 700's were used to win and set records in high power match rifle events, nobody used a fluted barrel in them. They didn't want to take any chances of an otherwise very accurate barrel's results would be reduced. No, I'm not saying that. All barrels erode their throat/leade increasing its distance from the breech face. It varies from 5 to 50 shots per thousandth of an inch. My .308's eroded the rifling about 35 to 40 shots per .001"; my .264 Win Mag about 6 to 8 shots per .001". .070" to .100" of throat erosion doesn't hurt accuracy very much. A .308 Win. erodes about that much and starting out at 1/4 MOA average for 10-shot groups at 100 yards will degrade to about 1/2 MOA after .100" of throat erosion over 4000 to 5000 rounds. [/QUOTE]
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Help deciding on 2 builds
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