Hi, I'm new to this forum and relatively new to muzzleloader hunting. I bought a T/C Triumph last year and had excellent luck with both the gun and hunting last year. This year I went to the range to make sure the gun was sighted in and it's printing holes all over the place. I hadn't changed a thing as after my hunting last year I cleaned the gun and applied bore butter for storage and cleaned the barrel before loading and shooting. Using the same loads and same everything it will sometimes group two shots and the next two, three or four shots will be 6' high, low, left or right. Shot around 15 to 20 shots and I'm at a loss and frustrated as I'm booked for a Kansas hunt at the end of September. Any suggestions?