Jerry I do have some more abrasive compound I could try, I'm having one chamber right now, so when I get it back I'll try it. And Jim1K glad to hear you use Kroil also to lub the barrel, been using it for years!
Joe Salt
I have a question......after you clean are you running an oil patch down the barrel to pre-lube before firing or are you firing from a dry bore?
I just got four bottles of Lock-Ease online for 1.89 a bottle. I'm going to try it after cleaning during matches. I didn't realize so many were using it and other like substances after cleaning. Apparently it gets you back on your mark faster.