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Rifles, Reloading, Optics, Equipment
Gunsmithing
Tight Chamber Advice
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<blockquote data-quote="tobnpr" data-source="post: 2612776" data-attributes="member: 68758"><p>^^^</p><p>This. Something's not adding up.</p><p>Have you recently checked your micrometer to make sure it's calibrated? I don't see any measurements you posted of your brass that should interfere with chambering.</p><p></p><p>European brass manufacturers hold their brass closer to minimum chamber dimension, typically domestic brass is .004-.005 undersize.</p><p>A chamber cut with a SAAMI spec reamer should have no problem chambering European brass.</p><p>However, if a reamer ground to a "tighter" spec for using Winchester brass were used- it would likely be too tight for Euro brass.</p><p></p><p>I'd check with the smith again to confirm it was a SAAMI spec reamer. You can also do a quick Cerrosafe chamber cast to confirm your chamber dimensions.</p></blockquote><p></p>
[QUOTE="tobnpr, post: 2612776, member: 68758"] ^^^ This. Something's not adding up. Have you recently checked your micrometer to make sure it's calibrated? I don't see any measurements you posted of your brass that should interfere with chambering. European brass manufacturers hold their brass closer to minimum chamber dimension, typically domestic brass is .004-.005 undersize. A chamber cut with a SAAMI spec reamer should have no problem chambering European brass. However, if a reamer ground to a "tighter" spec for using Winchester brass were used- it would likely be too tight for Euro brass. I'd check with the smith again to confirm it was a SAAMI spec reamer. You can also do a quick Cerrosafe chamber cast to confirm your chamber dimensions. [/QUOTE]
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