[ Hunting ] Open Question : .45 colt or .44 mag for black bear?

Which of these will be best for black bear hunting in tennessee. I have a springfield armory in 45 colt and a 44mag revolver that I will take with me, just need buy eather the .45 in a marlin lever gun or a .44 in a marlin. If I buy a .45 I'll take the .45 pistol, get what I mean, smae load.