10mm pistol

A Colt 6520 10mm autoloading pistol. Each pull of the trigger will automatically reload the firearm until the magazine is empty. Single shot only, using the powerful 10mm round.

The 6520 is a pistol with a revolving cylinder and is a highly durable and efficient weapon, resistant to desert-like conditions of the post-nuclear wasteland, a fine example of workmanship and quality. The 6520 has no problem feeding hollowpoint ammunition for small game hunting or armor piercing rounds for larger bipedal game.

These traits make it very popular among raiders or survivalists for whom advanced equipment requiring high maintenance would be a liability.

10mm Pistol is a Fallout and Fallout 2 weapon.

Behind the scenes
The 10mm pistol is a reference to the Hard Boiled comic books. It's plausibility as a real weapon is disputable.