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Rifles, Reloading, Optics, Equipment
Reloading
Brass Life
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<blockquote data-quote="Bart B" data-source="post: 116423" data-attributes="member: 5302"><p>Brass life (reloads per case) depends on three things: how much the case is sized down form its fired dimensions, how hot the load is and the quality of the cartridge brass.</p><p></p><p>I and many others get between 50 and 100 reloads per good commercial rimless bottleneck cases when fired in SAAMI minimum chambers and full-length sized such that body diameter's not reduced more than .003-in. and the shoulder's set back no more than .003-in. using maximum loads producing best accuracy. Primer pockets don't open up much all with our maximum loads until after about 50 reloads. If they do, a tool is used to crimp the pocket's top edge so they'll hold a primer. We don't need to anneal case necks. I've never annealed a case neck.</p><p></p><p>If one gets short case life, too much of at least one of two things is the cause; case sizing (oversize chamber?) powder charge for the bullet used and case hardness (especially military cases; they aren't made to be reloaded, even match ones).</p></blockquote><p></p>
[QUOTE="Bart B, post: 116423, member: 5302"] Brass life (reloads per case) depends on three things: how much the case is sized down form its fired dimensions, how hot the load is and the quality of the cartridge brass. I and many others get between 50 and 100 reloads per good commercial rimless bottleneck cases when fired in SAAMI minimum chambers and full-length sized such that body diameter's not reduced more than .003-in. and the shoulder's set back no more than .003-in. using maximum loads producing best accuracy. Primer pockets don't open up much all with our maximum loads until after about 50 reloads. If they do, a tool is used to crimp the pocket's top edge so they'll hold a primer. We don't need to anneal case necks. I've never annealed a case neck. If one gets short case life, too much of at least one of two things is the cause; case sizing (oversize chamber?) powder charge for the bullet used and case hardness (especially military cases; they aren't made to be reloaded, even match ones). [/QUOTE]
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Reloading
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