I bought a muzzle loader barrel from Mike Bellum. My Pro Hunter is a tack driver now. Best money I ever spent. I think he uses Begara Barrels, not T/C barrels. Last load was 100 gr BH with a 350 gr Hornady FPB, 3 shots at 100 yards measured .706 not subtracting bullet diameter of .500, which would make it .206, not too shabby.