interesting post.
45ACP Ball penetrate, expend all their energy in the target and stay where they stop. One of my more intresting jobs was as a Coroner's Investigator. I've helped dig those big bullets out of several dead people. The main reason I have a .45ACP on my carry permit = they WORK! Oh My do they work!
The most memorable example = A "deadx7" little criminal who attempted to hold up a gunstore with a sawedoff singleshot rifle:rolleyes: He missed his shot at the armed clerk, who then expended the entire contents of his 1911 into the fool at pointblank range. We figured the first round between the eyes did the job, the remainder of the magazine may have been over reaction on the clerk's part although he wasn't charged = Justifiable Homicide, but there certainly was NO over penetration,
all bullets were still in the remains - verified by X-ray.
Goriest post I ever scrubbed in on - took 2 days to verify the path of each of those slugs, any one of which would have been a fatal hit. The ME's comment on the whole thing = "A bit of OVERKILL here, but nice grouping!"
http://www.thehighroad.org/archive/index.php/t-23762.html