http://www.huntingnet.com/forum/tm.aspx?m=2137270

Younggun posted a picture of a deer's anatomy on the thread linked above. Its sort of a pop-up flash picture. Its a fairly good one as well. Its on the second page, at the top. I was trying to explain to him exactly where I was hitting the deer to make them pile up like a wet towel. Right where the spine dips, right on the leading edge of the shoulder is where I whack'em. Either there or just an inch or two back and up of that spot.

SC,

Thanks for the anatomy lesson. I checked out the diagram and its pretty cool. While I am not doubting its effectiveness, I don't think I'm ready for that yet. I was raised as a vitals (heart/lung) shooter, and it has worked for me. I have only had a couple deer get away if hit properly (one when I was young - tragic, likely hit too far back, and the other because of heavy rain, which we unfortunately found later in very thick stuff).

Good stuff to file away though for future scheming on shots.