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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.284 Chamber Questions
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<blockquote data-quote="MagnumManiac" data-source="post: 1519983" data-attributes="member: 10755"><p>This is a quandary many face, but in reallity there is no problem at all.</p><p>If you have a good set of micrometers, particularly a set that reads 1/10,000".</p><p>I would measure your brass cases, in nearly EVERY brand of case, you will find they are .005" UNDERSIZED from whatever specs you look at, whether it's SAAMI or CIP.</p><p>Even my Lapua 6.5x47 brass is .005" undersized in the base just above the extractor groove, this is normal in my experience as this part of the case is actually OUTSIDE the chamber when the bolt is closed.</p><p>It's the measurement .200" up from the case head/boltface you need to be concerned with.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1519983, member: 10755"] This is a quandary many face, but in reallity there is no problem at all. If you have a good set of micrometers, particularly a set that reads 1/10,000”. I would measure your brass cases, in nearly EVERY brand of case, you will find they are .005” UNDERSIZED from whatever specs you look at, whether it’s SAAMI or CIP. Even my Lapua 6.5x47 brass is .005” undersized in the base just above the extractor groove, this is normal in my experience as this part of the case is actually OUTSIDE the chamber when the bolt is closed. It’s the measurement .200” up from the case head/boltface you need to be concerned with. Cheers. [/QUOTE]
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.284 Chamber Questions
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