The Firing Line Forums - View Single Post - Different ways to chamber a rifle barrel?

HiBC · June 9, 2013, 02:51 PM

I use pin gages and a 4-jaw at the chuck,and also do the same at the other end of the barrel with a spider.
I crown the same way,generally 11 deg,then I put a center drill in the tool holder and use it like a boring bar to just cut a small corner break ,maybe .002 at the grooves.

June 9, 2013, 02:51 PM	#35
HiBC Senior Member Join Date: November 13, 2006 Posts: 8,286	I use pin gages and a 4-jaw at the chuck,and also do the same at the other end of the barrel with a spider. I crown the same way,generally 11 deg,then I put a center drill in the tool holder and use it like a boring bar to just cut a small corner break ,maybe .002 at the grooves.