Originally Posted by USMarineEJP
Depends if it chrome lined and if it is a heavy barrel. You should be able to shoot more than 5000 rounds.
It was a 16" government profile with chrome. Agreed, you should definately be able to get more than 5000 out of it without that much wear. I always cleaned it really well right after shooting, used good ammo, never really even rapid fired it much. Only suspect that comes to mind for the bad wear is the relatively light grain ammo.