The Magtech 357L Cowboy Action load is a purpose-built .357 Magnum cartridge featuring a 158-grain lead flat-nose bullet. It is manufactured for cowboy action shooting and range use where consistent accuracy and reliable functioning in single-action revolvers and lever-action rifles are priorities. These rounds are offered in 50-round boxes and are produced with brass cases and documented ballistics for predictable performance.
Key Specifications
- The caliber is .357 Magnum.
- The bullet weight is 158 gr.
- The bullet type is Lead Flat Nose.
- Each box contains 50 rounds.
- There are 20 boxes per case.
- The listed muzzle velocity is 1085 fps.
- The listed muzzle energy is 413 ft lbs.
- The cartridge case material is Brass.
- The application is specified as Target Shooting.
- The product weight (as provided) is 1.91.
Designed for competitive cowboy action shooters and traditional revolver enthusiasts, this Magtech load provides consistent ballistics and reliable feeding in single-action platforms and lever guns. Its lead flat-nose profile is suitable for target work and steel-plate shooting where predictable terminal behavior and dependable cycling are desired characteristics.





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