Gauge, inspectors, headspace, 7.62 mm rifle

[tankhunter]

As Peter has Endorsed. The rifles were held in a bench Vice & the Butt resting on a 'Horse'.

Also, if you had a 4" Vice, the Reciever CAN/ Was be held by the RHS. In the magazine well.
I have done this on Numerous Occasisons. But if you do this, ENSURE you use protective Clams!
Or you will end up with 'Bubba' 'Checkering' on that Flange!.....