I have noticed when I have wounded and made a poor hit on animals that I have been hunting that it seems like it takes even more subsequent rounds to put them down after a poor shot.
Yep. It's the increased blood pressure when an animal is stressed that has to be overcome. On a DRT kill, an animal's spleen will typically be soft and pliable when you gut it. On an animal that takes flight and lives a while before it expires the spleen will be firm and contracted. The body is trying to shunt every drop of blood to maintain BP.
