Not sure about the carbine bbls from T/C, but they cut the handgun chambers with a forcing cone instead of a throat. Whatever you go with, if using a handgun round, make sure the chamber is cut with a regular throat instead of a tapered cone. Morons. Oh well, my 44 still shoots amazingly. Better than I can hold. I've got a few other contenders. Aftermarket bbls are pricey from makers like Bullberry, but they are worth every dime. Have a 22 cal Bulberry that I use to head-shoot grouse. Longest shot so far is about 110. It is accurate.
