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Rifles, Reloading, Optics, Equipment
Reloading
what dies for a semi??
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<blockquote data-quote="Bart B" data-source="post: 497993" data-attributes="member: 5302"><p>What this means is you need to get case headspace back to about what new ones are at. Most semiautos cycle more reliably with case headspace being 4 to 5 thousandths shorter than chamber headspace. Use an RCBS Precision Mic (or equivalent from another maker) to measure case headspace from head to shoulder reference. Case life won't be more than 3 to 5 reloads per case, but such is life with semi's. Don't set fired case shoulder back any more else incipient head separation will soon start.</p><p></p><p>Bolt guns typically do best when fired case headspace is set back no more than 2 thousandths.</p></blockquote><p></p>
[QUOTE="Bart B, post: 497993, member: 5302"] What this means is you need to get case headspace back to about what new ones are at. Most semiautos cycle more reliably with case headspace being 4 to 5 thousandths shorter than chamber headspace. Use an RCBS Precision Mic (or equivalent from another maker) to measure case headspace from head to shoulder reference. Case life won't be more than 3 to 5 reloads per case, but such is life with semi's. Don't set fired case shoulder back any more else incipient head separation will soon start. Bolt guns typically do best when fired case headspace is set back no more than 2 thousandths. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
what dies for a semi??
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