HSM Cowboy Action .357 Mag 158 gr SWC 50rd

HSM Cowboy Action ammunition is loaded to traditional-style pressures for reliable performance in period firearms and modern handguns. This load pairs a hard-cast semi-wadcutter bullet with reloadable brass and boxer primers for consistent feeding and reloading. Intended for Cowboy Action disciplines and target shooting, the cartridge combines classic bullet profile with documented velocity and energy figures.

Key Specifications

• The caliber is .357 Magnum.
• The bullet weight is 158 grains.
• The bullet type is Semi-wadcutter, hard lead (SWC).
• The listed muzzle velocity is 1175 fps.
• The listed muzzle energy is 484 ft·lbs.
• Cartridges per box: 50 rounds.
• Boxes per case: 10.
• The case material is brass.
• Reloadable: Yes.
• Primary application: Target shooting / Cowboy Action.

With its hard-cast semi-wadcutter profile and documented performance, this HSM Cowboy Action load is well suited to shooters who prioritize traditional bullet geometry and reloadability for range and competition use. The combination of reloadable brass, consistent velocity, and a classic bullet design makes it a practical choice for disciplined shooting activities where reliable function and manageable pressures are important.