An old tale of downrange shooting
Years ago, an ROTC cadet, told me that an Army sergeant had experimented at the .22 caliber rifle range, in the basement of the student cafeteria.
He fired an armor piercing round out of an M1.
Nobody is that stupid, I told him!
One day I was passing that building and I thought to inspect the target side of the building. Yes there was a patch in the building block, yes there was a hole on both sides of the gasoline station sign across the street, and probably that bullet did go through a window and into the wall of an office, downtown.