.357 Magnum (Handgun) (using Sierra bullets)
Date: Feb 18 2021
The .357 Magnum was introduced in 1935 as a joint effort between Smith & Wesson and Winchester. It was the first magnum revolver cartridge that enjoyed widespread popularity. It has been chambered in a variety of double-and single-action revolvers, single-shot pistols, autoloading pistols, derringers and many rifles. It has proven useful for hunting, target work, defense and law enforcement and is a versatile revolver cartridge. Original loads were advertised to push a 158-grain cast, SWC-style bullet faster than 1,500 fps from an 8¾- inch revolver barrel with vintage factory loads containing 15.3 to 15.4 grains of Hercules 2400 powder. Although several fast-to medium-burn rate powders produced excellent accuracy, velocities were comparatively low. For top performance, Alliant 2400, Accurate No. 9 Hodgdon H-110 and Winchester 296 are good choices.