Old news for some of you, a great learn for others.
Found this on another site and its a great photo to learn from. I know its an antelope but a whitetail is going to be very similiar. There seems to be a fair amount of posts lately mentioning "i hit too far back" "gut shot" whatever.
I as probably many of you, was taught to always aim behind the shoulder on a deer. I still hear alot of people say this and I think this is the main reason so many deer are hit in the gut or too far back. Too many people think the shoulder is straight above the leg when in fact the shoulder blade is very high above the leg and the leg bone protrudes way out into the chest of the animal. When you aim "behind" the "supposed" shoulder you are giving yourself zero room for error going back on the animal. Aim directly above the back of the front leg (at the black X which is right on the lung, soo how close that stomache is?!) and you have just given yourself room for error in all directions, and I think everyone I know would love to have some margin for error. Take it for whats its worth and if it changes one persons idea of where to aim, good enough.