I was discussing bullets going all the way through an animal verses one that stays in then animal with a friend. He thinks the bullet that stays in the animal has transferred its energy better. I think it may just mean it did't have enough energy to go all the way through. Most of the moose that I have shot the bullet went through the lungs and both sides never to be found. In all those cases the moose went down and never got up. What do you think?