The Firing Line Forums - View Single Post - New AR15 build

Bart B. · May 10, 2013, 04:16 PM

You need to check it with a GO gauge. If that won't chamber and the bolt did not close on the NO GO gauge, then some ammo won't chamber easily as chamber headspace is too short.

May 10, 2013, 04:16 PM	#4
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	You need to check it with a GO gauge. If that won't chamber and the bolt did not close on the NO GO gauge, then some ammo won't chamber easily as chamber headspace is too short.