I have 2 opinions on this. #1 I would prefer that the bullet utilize all its energy and stop inside the animal. Provided of course it has enough energy to humanely drop the animal. This is on a well placed shot through thevitals.
#2 I would prefer a shotto pass through if the shot was not ideally placed. Which in the real world isalways a possibility. This will give you two holes instead of one for tracking a wonded animal.