HSM Cowboy Action ammunition for .38-40 Winchester delivers a 180‑grain lead round‑nose flat‑point (RNFP) projectile in a 50‑round box. The published performance lists a muzzle velocity of 930 fps and muzzle energy of 346 ft‑lbs. These cartridges are built on brass cases and are marked as reloadable, intended for use in period‑correct handguns and rifles commonly used for Cowboy Action and target shooting. The load profile and bullet shape reflect traditional designs favored in historical shooting disciplines.
Key Specifications
- Caliber is .38-40 Winchester.
- Bullet weight is 180 grains.
- Bullet profile is Lead Round Nose Flat Point (RNFP).
- Published muzzle velocity is 930 fps.
- Published muzzle energy is 346 ft‑lbs.
- Packaging provides 50 rounds per box.
- Case pack contains 10 boxes per case.
- Case material is brass.
- Product is listed as reloadable.
- Intended application: Target Shooting / Cowboy Action.
These HSM loads offer an authentic, historically minded cartridge for shooters working with .38-40 firearms. The 180‑grain RNFP bullet and brass case construction make the rounds suitable for range work, target practice, and Cowboy Action events, with components that support reloading for those who handload. If you need ammunition that matches period profiles while providing consistent published ballistics, this box presents a straightforward option.
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