My new 590A1 has some spot rust inside the barrel, towards the muzzle that I can see, not sure if there more elsewhere. Whats the best way to get this off?
Secondly, is using a copper bore brush going to damage my barrel? I read something about barrels getting "pitting" in them and I don't want that to happen. How do I prevent that? Thanks!
Secondly, is using a copper bore brush going to damage my barrel? I read something about barrels getting "pitting" in them and I don't want that to happen. How do I prevent that? Thanks!