Don't know how TC customer service is after all the ownership changes, but I had trouble with a Thunderhawk and sent it in for them to check it out. They didn't like the barrel (said it was a little overbore), didn't have any new barrels and would I like a new rifle!
Good luck no matter what you do. I miss enough with a center fire rifle let alone blackpowder. Got to have confidence then gun can shoot!
