Im embarrassed to post this but I need help. Last flintlock season I hunted first 2 or 3 days no shot. I came down with that flu everyone had last winter going to doctor twice and lost the rest of season. I have a Pa pellet gun and use black powder, left it in the case in my large garage and just stumbled on to it last week. I was able to get the ball and powder out and it compacted very tight. It looks very bad and I haven't started to do anything yet. Is there any advise of what to use or try? Any good technique someone could comment on. Or do they make a replacement barrel I could just buy right out? Im sitting here on keyboard with eggs running down my face but would appreciate any help. I don't do things like this but it happened.