I did some research last night but could not find the original British 303 Enfield WW2-era Armourers Headspace Gauge-NoGo. which is .074 in. The regular SAAMI is not matching with Brits standards.
Is there anyone willing to sell or any idea where can I find one to own? apex used to have them but not anymore
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I checked but I don't have one..sorry about that