Underwood Ammo 158gr XTP jacketed hollow point ammunition is loaded for the .357 Magnum cartridge and intended for hunting and defensive use. The XTP profile is engineered for controlled expansion and consistent terminal performance. Rounds are assembled in nickel-plated brass, boxer-primed, reloadable cases and packaged in 20-round boxes.
Key Specifications
- Chambered in .357 Magnum.
- Bullet type is Jacketed Hollow Point (XTP).
- Bullet weight is 158 grains.
- Muzzle velocity is approximately 1500 ft/s.
- Muzzle energy is 790 ft·lbs.
- Units per box are 20 rounds.
- Boxes per case are 10.
- Case material is nickel-plated brass.
- Primer type is boxer primed.
- Reloadable status is yes.
This Underwood 158gr XTP load pairs a proven hollow-point profile with nickel-plated brass cases for reliable feeding and corrosion resistance. Packaged in 20-round boxes and offered in multi-box cases, the cartridge is intended for shooters who require a heavy-for-caliber defensive or hunting load with reloadable components and consistent performance.
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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