Chapman, the article I read came out of a law enforcement publication. It was approx 5-8 yrs ago and I don't remember the writer or the name of the publication. It primarily delt with the effects of gunshot wounds from pistol rounds on humans and I believe the data was originally compiled from a source that collects that kind of data like the FBI.
Generally most subjects of shootings, animal or human die from blood loss. the best way to do this is make the biggest hole (or holes) you can the furtherest through the subject you can, preferably through heart, lung or liver. Research shows that heavier bullets get better penetration over lighter bullets. This is an interesting line of study, with many points of view. I have never shot an elk sized animal with a sabot, but I know a friend that put one in the boiler room and ended up tracking it until the blood trail dried up. Of course he could have had poor shot placement, but I want the insurance.

Happy day