I have a T/C Contender with the 10" 410/.45Colt barrel.
I think I know wht y'all are going to say, but is there any reason I could not shoot the .45ACP in this gun? After all, isn't .45 always a .45? The chamber is completely smooth into the barrel/riflings.
After all, it is designed to shoot the much longer 410 shell as well as the .45 Colt.
I wouldn't try it through a revolver for obvious reasons, but the Contender is a break action.