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Old November 17, 2012, 05:49 PM   #7
4V50 Gary
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Join Date: November 2, 1998
Location: Colorado
Posts: 17,045
If you're checking headspace by examining fired cases, you're not doing it right.

Remove the extractor from the bolt and insert a "go" gauge into the action. It should close.

Now try the same with the "no go" gauge. If it closes, it's probably over SAAMI specs.

If it closes on a "field" gauge, the barrel shank must be shortened to reduce the headspace and that means lathe time by the gunsmith.
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