Last season I shot a nice non-typical buck. When the arrow hit him it cracked very loud. He took off running and the arrow was hanging out of the side I hit him on and fell back out about 20 yards after he started running. I retrieved the arrow and noticed it only penetrated about 2 inches. I have heard of this happening to other hunters but it was the first time it happened to me. I knew then I hit him on the thickest part of his shoulder bone. My son and I gave him some time then searched all day and did not find him. There was very little blood. I know he lived to see another day.