I don't have a 7.62 head space gauge and was wondering...can I take the extractor and spring out of the bolt head,firing pin and spring out of the bolt body, chamber a dummy round and then reasonably get an idea of the headspace by inserting a feeler gauge between the receiver and the locking nub where the bolt handle is?

Is it dangerous to have head space too tight, as in forcing the bolt handle down the last inch? Watching someone else shooting with this issue, it didn't seem to affect the shooting but I kept the shooters bodies between the gun and me...lol, this coward will live a long time, or at least longer...
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