"Dude, be careful. That thing will take your arm off."
The .460 Shatter Cannon AP is a truly enormous pistol chambered in .460 S&W. While that cartridge by itself is a threat to armor, the Shatter Cannon is purpose built to destroy armor entirely.

The Shatter Cannon is electromagnetically propelled as well as being propelled by gunpowder. The heavy reciprocating bolt aims to help take down the recoil a bit by flying backwards in spectacular fashion on every shot.