Underwood Range Supply handgun ammunition is built to deliver consistent, range-ready performance using quality components at an accessible value. These rounds employ a full metal jacket bullet designed for target and practice use and are manufactured as new production, non-corrosive cartridges. The load uses flash suppressed powder to reduce visible muzzle flash in low-light conditions. Cases are boxer-primed and reloadable, supporting follow-up use for qualified reloaders.
Key Specifications
- The caliber is .357 Magnum.
- The bullet weight is 158 grains.
- The bullet type is a full metal jacket (FMJ).
- The listed velocity is 1400 fps.
- Each box contains 50 rounds.
- The cases are boxer primed reloadable brass.
- This is new production non-corrosive ammunition.
- Loaded using flash suppressed powder to minimize visible flash.
- The shipping weight is 1.85.
Designed for dependable performance at the range, Underwood Range Supply .357 Magnum 158gr FMJ loads provide consistent ignition and reliable feeding in a wide range of common handguns. With reloadable brass cases and a focus on consistent manufacturing, these rounds are well suited for training, target practice, and general range use for shooters who prioritize dependability and straightforward performance from their ammunition.









