i don't blame you griz. matter of fact i have a renegade .54 barrel with the same problems as you have. guess thats why that barrel sits in the corner. :haha:grizzy adams said:put on a new spit fire nipple before shooting , and I have a slow twist gm barrel for it all ready , just shooting the tc barrel to see what it would do , it wont shoot prb or minnie for nuffin , i tried every thing , different powder , balls , patching , felt wads under prb etc , the tc barrel just dont group, i,m at the point of giving up on the tc barrel.