Another headspace question for No4 MK1

[butlersrangers]

Peter: (IIRC) In the U.S., it is the 'Field' gauge that would measure .074". (The 'No Go' is the intermediate gauge).

In general, if a bolt closes on the 'No Go' gauge, it may indicate a problem. However, a rifle may still be useable, if the bolt does not close on the thicker 'Field' gauge.

Crazy, the order in which we named them in the U.S. - Min. 'Go' / Int. 'No Go' / Max. 'Field'.