Buckeye great anatomy of a deer link the best yet thanks. I go for the center shot just above the heart that gives me 6" in any direction with a vital area kill. I agree the little 2or 3" citcle for the kneck shot if a low precentage shot. Whats bad if you miss the neck to the 3 oclock direction you can sever only the wind pipe and the deer dies days later, and you will not probably be able to track him.