Ok, so you've got maybe an inch of hair and hide on the top of a deer. Below that you have about 3 inches of backstrap and the top projections of the spine. Below that, for a few inches, you have the spinal chord its self. Below that, you have ribs and a little dead space. Below that, lungs. I generally shoot for 2/3 the way up the rib cage. I will follow the front leg up and back about 3 inches so I don't shoot through one of the front quarters. I have used the high lung shot several times. My latest deer was quartering away from me farther than I thought. She must have had her butt almost straight on to me. I was lucky not to gut shoot her. The bullet entered high just in front of her left hind quarter, angled throught the body, and ended up lodged on the neck-side of her right front quarter. I was lucky, the bullet traveled just low enough to clip through the lungs, but not so low as to hit the intestines. I was surprised, because I thought she was more broadside to me. She ran off about 35 yards into a balsam thicket and died. I let her lay for a little while. There was probably a blood spot the size of a quarter every 10 yards or so on the fresh snow. The bullet didn't exit but was right under the hide on the opposite side. If the shot had been more broadside I would have had an exit wound, but that bullet must have plowed through 36" of deer,. She was bleeding from the mouth pretty severely when I walked up on her. She was dead. I bet the blood I saw on her trail might have come from her mouth, because it wasn't until I skinned her that I saw where the bullet actually went in. When they are walking away from you the diference of a few inches right to left in aiming can mean the diference between hitting them in the front shoulder or lmost in the butt I guess.