View Full Version : Technical: source for pin gauges

November 19, 2000, 18:35
Get pin gauges at: http://www.mscdirect.com/PDF.process?pdf=2168

At * the Gunplumber said:
Or pin gauges, in .001" increments. Usually $3 each, probably could get away with a .256-.262". Available at any machineshop supply store.
Insert across the receiver with a go gauge in the chamber and find the one that is a tight "two thumb" pressure close. Thats your minimum. I usually add .002" to minimum for function with a wide variety of surplus ammo. Pick or modify a locking shoulder to same size.