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1/21/2010 6:54:30 PM EDT
I need to check if the bolt from my 603 kit will work in my 604 Barrel so I was wondering, is this:

http://www.brownells.com/.aspx/sid=...Headspace_Gauge
the correct gauge? like a feild gauge? bolt should not close on

thanks,

E.T.A. situation resolved, thanks again
1/21/2010 6:57:00 PM EDT
[#1]
I never head space, except on M1 Garands.  But then again, I only use new bolts.
1/21/2010 6:59:25 PM EDT
[#2]
I don't trust parts to be with in tolerances enough to bet my face or rifle to chance.
1/21/2010 7:23:41 PM EDT
[#3]
I use a USGI headspace gauge.
You can find them NIW on GunBroker.
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