You don't need 400gr of conical to kill something. Many mountain men who had 50cal and 53cal rifles used them for elk and moose and did just fine. The mountain men who had the bigger calibers also took game with no problem (only thier game was killed faster and was deader). All the mountain men killed elk and moose and bison with 50/53/54/58/62/69/ caliber roundballs just fine.