Underwood Ammo 50 Beowulf 350-grain Full Metal Jacket (FMJ) is a factory-loaded rifle cartridge intended for large-bore platforms where heavy, stable projectiles are required. This ammunition is new production, non-corrosive and loaded in boxer-primed, reloadable brass cases. The listed muzzle velocity is 1775 feet per second with a listed muzzle energy of 2449 ft-lbs. Product is sold in standard retail boxes for range or field use.
Packaging
Box: Sold per box containing 20 rounds.
Case: Sold by case; each case contains 10 boxes for a total of 200 rounds, and case quantity is achieved by ordering the required number of boxes.
Key Specifications
- Caliber is 50 Beowulf (12.7x42mm).
- Bullet weight is 350 grains.
- Bullet type is Full Metal Jacket (FMJ).
- Listed muzzle velocity is 1775 fps.
- Listed muzzle energy is 2449 ft lbs.
- Rounds per box are 20 rounds per box.
- Boxes per case are 10 boxes per case.
- Cases are made from brass and are boxer-primed and reloadable.
- Manufacturer is Underwood Ammo.
- This product is listed as safe for use in a suppressor.
This Underwood 50 Beowulf 350gr FMJ load delivers consistent factory performance in reloadable brass cases, making it a practical option for owners of .50 Beowulf rifles who require dependable, large-bore ammunition for range and field applications.
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.




