The Winchester Super-X .357 Magnum 158 grain Jacketed Soft Point (JSP) is handgun ammunition specified for defensive and handgun use. Published ballistic data lists a muzzle velocity of 1235 fps and muzzle energy of 535 ft lbs for this loading. Loaded in brass cases, these rounds are listed as reloadable and supplied in 50-round retail boxes.
Box: This product is sold per box containing 50 rounds. Case: A case is supplied as 10 boxes; ordering a case quantity is achieved by ordering the required number of 50-round boxes to total 500 rounds.
Key Specifications
- Manufacturer: Winchester.
- Model: Super-X.
- Caliber: .357 Magnum.
- Bullet Weight: 158 gr.
- Bullet Type: Jacketed Soft Point (JSP).
- Muzzle Velocity: 1235 fps.
- Muzzle Energy: 535 ft lbs.
- Rounds Per Box: 50.
- Boxes Per Case: 10.
- Units Per Case: 500 rounds.
These Super-X .357 Magnum loads provide a consistent, brass-cased jacketed soft point option for shooters seeking dependable performance in a 50-round box or bulk 10-box case. The combination of a 158-grain JSP projectile and the listed velocity/energy figures addresses defensive and general handgun use where a jacketed soft point is specified.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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