The '''.50 Action Express''' is a large-bore handgun cartridge designed in 1988 by Evan Whildin, primarily for use in [[Magnum Research]]'s [[Desert Eagle]] handgun. It was later used in Magnum Research's [[Big Frame Revolver]], as well as some other weapons by other companies. | The '''.50 Action Express''' is a large-bore handgun cartridge designed in 1988 by Evan Whildin, primarily for use in [[Magnum Research]]'s [[Desert Eagle]] handgun. It was later used in Magnum Research's [[Big Frame Revolver]], as well as some other weapons by other companies. |