I was watching someone's caribou video today, you know, the ones where they film from over the shoulder of the shooter so you can see the shot? Anyway in this video everything looked good, but the bull was moving. The shooter tracked it with the barrel until it turned broadside and stopped. Then BOOM! The animal was hit, and BOOM! A second shot put it down. As it fell, I could see a second animal standing at a distance behind the first one, and I thought, gee... what if the bullet passed between the ribs, exited the first animal and hit the other one? It could have been the camera angle, and perhaps the other animal was not centered behind the first one. But I thought I'd drop a reminder in here to be careful to avoid shots where a second animal is standing behind the one you're shooting. It's easy to get fixated on the animal you're shooting, to the point where your tunnel vision does not see the other critter standing there. This is particularly problematic with herd animals like caribou.
Just a thought.