I shot my bulldozer once with a .45. Just put a dent in the back side of the blade. I would have liked to examine the inside of the block to see if the bullets hit anything else. I can't see a small caliber hand gun penetrating the block and I can't see a small caliber centerfire rifle that has enough energy to knock a hole in the block not have enough energy to at least leave a mark on something inside. It makes you wonder.
