Keith, Have a look at a clay gun owned by a "slammer" and you will see damage to the face of both barrel and breech that resembles pitting.
Gunman,
Since I am the only Keith who posted in this thread, I'd like to point out that I advocated closing a gun "normally", i.e., neither slamming it or babying it. This normal closure is what I said would not approach the dynamic forces of firing, and thus allowing the bolting spring to completely and consistantly lock it will neither leave it slightly loose nor spring or gall anything. I will not slam. I will not baby. I will not weld a nut to my toplever and use a torque wrench set at 22 inch pounds. In short, I won't get anal about closing my guns. I'll close them normally and expect they will still be on face when my grandkids are my age.
