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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How long does it usually take a barrel to break in
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<blockquote data-quote="Greyfox" data-source="post: 1324552" data-attributes="member: 10291"><p>I think of two aspects when it comes to break-in. The first is the initial fire-clean routine that seems to get rid of the carbon/copper accumulating rough areas of the barrel that makes for easier cleaning down the road. The second aspect has to do with the stabilization of velocity and can vary based on the specific barrel. With barrels ranging from custom through factory, many of seem to settle in around the 200 round mark with velocities of 20-50FPS higher and tighter ES then the original values. I have rarely seen much of a difference in inherent precision measured at 100-200 yards between a new barrel and one which has seen +200 rounds given an optimized load has been used in both cases. For that is reason I usually hold off establishing serious long range ballistic data until I'm comfortable the barrel has settled in. Not saying this is gospel, but it been my experience over the years.</p></blockquote><p></p>
[QUOTE="Greyfox, post: 1324552, member: 10291"] I think of two aspects when it comes to break-in. The first is the initial fire-clean routine that seems to get rid of the carbon/copper accumulating rough areas of the barrel that makes for easier cleaning down the road. The second aspect has to do with the stabilization of velocity and can vary based on the specific barrel. With barrels ranging from custom through factory, many of seem to settle in around the 200 round mark with velocities of 20-50FPS higher and tighter ES then the original values. I have rarely seen much of a difference in inherent precision measured at 100-200 yards between a new barrel and one which has seen +200 rounds given an optimized load has been used in both cases. For that is reason I usually hold off establishing serious long range ballistic data until I'm comfortable the barrel has settled in. Not saying this is gospel, but it been my experience over the years. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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How long does it usually take a barrel to break in
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