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Rifles, Reloading, Optics, Equipment
Gunsmithing
Go Gauge Compatibility
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<blockquote data-quote="tobnpr" data-source="post: 2975242" data-attributes="member: 68758"><p>This is a head scratcher to me. With cartridges that headspace off the shoulder datum it's possible that factory ammo could still chamber with slightly short headspace because factory brass is often undersized. I don't see how that could happen with a belted case- and in this case with zero handle fall, headspace is significantly short based on the confirmed dimension of the gage.</p><p></p><p>You wouldn't have wanted to run a reamer in (no difference assuming they use a SAAMI spec reamer) as it might not be short chambered. I could be wrong (someone correct me if I am...), but I'm assuming they run the reamer in to a specific depth based on their receiver's ring to boltface dimension and tenon length. If the tenon is a few thousandths too long, the chamber could be perfect depth and you'd have the same end result- insufficient headspace.</p></blockquote><p></p>
[QUOTE="tobnpr, post: 2975242, member: 68758"] This is a head scratcher to me. With cartridges that headspace off the shoulder datum it's possible that factory ammo could still chamber with slightly short headspace because factory brass is often undersized. I don't see how that could happen with a belted case- and in this case with zero handle fall, headspace is significantly short based on the confirmed dimension of the gage. You wouldn't have wanted to run a reamer in (no difference assuming they use a SAAMI spec reamer) as it might not be short chambered. I could be wrong (someone correct me if I am...), but I'm assuming they run the reamer in to a specific depth based on their receiver's ring to boltface dimension and tenon length. If the tenon is a few thousandths too long, the chamber could be perfect depth and you'd have the same end result- insufficient headspace. [/QUOTE]
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Go Gauge Compatibility
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