First introduced as the Smith & Wesson .44 Magnum in 1955, the Model 29 was the original .44 Mag. revolver—and it would go on to attain nearly unparalleled levels of fame in the wheelgun industry.

Although a narrower bullet, the .357 Magnum delivered a very respectable 494 foot pounds of energy, while the .45 ACP delivered 365, the .45 Colt 444, and .44 Special a mere 295 foot pounds.