Can a 50 cal shoot through steel?

Answer 1

If you mean the .50 cal BMG cartridge, used in the Browning machinegun, and in the Barrett sniper rifle, yes. The cartridge was originally created back in WW I as an antitank weapon- meant to shoot holes in armored vehicles. The armor is a lot thicker now, but the 50 can penetrate quite a bit, depending on the bullet used. (Hint- do some research on armor piercing ammunition)