An old Army sarge used to tell me that AP was the only thing he carried thru WWII & Korea.
He and his buddy ran across a bank safe in a bombed out building in France, still locked up tight as a drum.
They shot at it with a Thompson and his Garand, to no avail.
He mentioned that the .45 bullets would hit the safe and just spin.
He sent his buddy off to find some AP rounds and he came back with a bazooka and two WP rounds.
Before his buddy could be stopped, the bazooka put a nice hole in the side of the safe.
All the money in the safe burned up real good.
He told me after that, he carried AP everywhere he would go.
He also mentioned it would go thru a German Halftrack like butter.
His face would light up when he would talk about shooting up half tracks.
Sorry for the highjack, just started me thinking.