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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 prc brass discussion
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<blockquote data-quote="BrentM" data-source="post: 2297567" data-attributes="member: 61747"><p>Your brass measurements are strange. I suspect it is the calipers. .5275-.5285 is common for new brass. Fired brass will run .530 - .531. After sizing you need .5305 or less on a .5330 saami chamber. For example hornady brass tends to be totally fine with a standard die and sizes down to .530 after 6 firings still. Lapau and adg seem to be an issue and wind up at .531-.5315 after sizing. If running hot hot loads they size to .532 and there is all sorts of issues with extraction and bolt lift. If you have brass at .532 and only sizing to .531 you will likely have issues with bolt lift clicks.</p></blockquote><p></p>
[QUOTE="BrentM, post: 2297567, member: 61747"] Your brass measurements are strange. I suspect it is the calipers. .5275-.5285 is common for new brass. Fired brass will run .530 - .531. After sizing you need .5305 or less on a .5330 saami chamber. For example hornady brass tends to be totally fine with a standard die and sizes down to .530 after 6 firings still. Lapau and adg seem to be an issue and wind up at .531-.5315 after sizing. If running hot hot loads they size to .532 and there is all sorts of issues with extraction and bolt lift. If you have brass at .532 and only sizing to .531 you will likely have issues with bolt lift clicks. [/QUOTE]
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6.5 prc brass discussion
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