View Full Version : Winchester Model 70 338 Win Mag w/ BOSS

July 22, 2009, 10:36 PM
I need help identifying the thread type used to mount the Browning BOSS muzzle bread to the Winchester Model 70 in 338 Win Mag. My father owns one of these guns and would like to pursue other muzzle break opportunities. I do not have access to this gun at this time, and can not gain access rifle without drawing attention to my gift idea.