Mike in FL
50 Cal.
I don't intend to sound uppity or like I have lots of money, but a pitted bore in any gun is not something I'd have in the house unless for a thing to hang on the wall. How it got pitted or how to fix it would not bother me because I'd never put time or money in a neglected gun; I'd just get a new rifle when I could. A good man who has more knowledge than I, would strive to save it. I realize lots of folks don't have enough income to be that wasteful, and many others enjoy restoring stuff. In my case it will be a long time before I can afford another gun, but I'd sell it and put the cash away until I could add to it and buy a new one or one without such serious defects. Best of luck. Except for my input, you certainly came to the right place for advice on fixing it.