I don't have TC bbl, but as far as the 41's effectiveness, I'd say there isn't really much to improve on. You can get 1400-1500 fps from a revolver with just about any 210-220 gr JHP out there which is more than required for any whitetail. You will probably get more velocity and maybe more accuracy from a TC bbl, but I don't think you'll see any more "effectiveness", esp. on deer. Great round.