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**4V50 Gary** · November 17, 2012, 05:49 PM

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.

November 17, 2012, 05:49 PM	#7
4V50 Gary Staff Join Date: November 2, 1998 Location: Colorado Posts: 21,831	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. __________________ Vigilantibus et non dormientibus jura subveniunt. *Molon Labe!*