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Rifles, Reloading, Optics, Equipment
Reloading
Erratic pressure signs on previously safe load
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<blockquote data-quote="Veteran" data-source="post: 2308263" data-attributes="member: 118038"><p>I think these guys nailed all the most probable causes. But if you are shooting pure copper at 3700 fps, I think I'd borescope my barrel.</p><p></p><p>I would not be surprised if you have some copper plating. Small temp diff with extra friction back press in the bbl. may just have you out on the final margin of pressure.</p><p></p><p>If you have copper get some Boretech CU 2+ give it a good cleanout, and see. Borescope will tell you.</p></blockquote><p></p>
[QUOTE="Veteran, post: 2308263, member: 118038"] I think these guys nailed all the most probable causes. But if you are shooting pure copper at 3700 fps, I think I'd borescope my barrel. I would not be surprised if you have some copper plating. Small temp diff with extra friction back press in the bbl. may just have you out on the final margin of pressure. If you have copper get some Boretech CU 2+ give it a good cleanout, and see. Borescope will tell you. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Erratic pressure signs on previously safe load
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