Underwood Ammo 450 Bushmaster 300gr JSP is a factory-loaded rifle cartridge intended for hunting and self-defense applications. The load uses a 300-grain jacketed soft point bullet seated in brass cases and leaves the barrel at 1950 feet per second, producing approximately 2534 ft lbs of muzzle energy. Each retail unit is packaged for shooters and reloaders in a 20-round box.
Key Specifications
- Cartridge: 450 Bushmaster.
- Bullet diameter: 0.452 inches.
- Bullet weight: 300 grains.
- Bullet type: JSP (Jacketed Soft Point).
- Muzzle velocity: 1950 fps.
- Muzzle energy: 2534 ft lbs.
- Case material and primer: Brass; boxer-primed, reloadable.
- Contains lead: Yes — bullet contains lead.
- Box quantity: 20 rounds per box.
- Suppressor use: Listed as safe for suppressor use.
Packaging: Box — sold per box, with each box containing 20 loaded rounds. Case — available by case; a case quantity is achieved by ordering the required number of boxes to reach the case total.
This Underwood load combines a heavy-for-caliber projectile with reloadable brass cases and consistent velocity, offering shooters a dependable option for field use or defensive preparedness without unnecessary embellishment.
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.
