Monday afternoon I killed a doe in PA. The shot was head on, frontal and a bit lower in elevation. Distance was about 200 yards. I was shooting a 243 Winchester with Barnes 80gr TTSX bullets @ 3400fps. She took about 10 steps backwards. Entrance hole size was considerable and low in the chest, taking the heart & lungs south. It was getting dark so I didn't have much of a chance to look for the bullet and the remainder of its path of destruction. It did not exit!