The Underwood UNDERWOOD 458 HAMMMER 300GR – BALLISTIC TIP is a big-bore rifle cartridge packaged for retail and bulk purchase. It pairs a 300-grain projectile with a manufacturer-listed muzzle velocity of 2100 FPS for heavy-for-caliber energy delivery in appropriate platforms. The product is presented in 20-round boxes and is also supplied in case quantities as detailed below.
Packaging
Box: Sold per box containing 20 rounds per box. Case: Available by case; a case quantity is achieved by ordering 10 boxes (200 rounds total) per case.
Key Specifications
- The manufacturer is Underwood Ammo.
- The product designation is UNDERWOOD 458 HAMMMER 300GR – BALLISTIC TIP 20RD 10BX/CS.
- The bullet weight is 300 grains.
- There are 20 rounds per retail box.
- There are 10 boxes per case.
- The listed muzzle velocity is 2100 FPS.
- The cartridge is indicated as reloadable.
- The listed package dimensions are 2.40 x 2.55 x 3.25 inches.
This ammunition is built for heavy-bore rifle applications where high retained energy and robust projectiles are required. It is packaged to support both single-box retail purchases and bulk case orders, providing consistent specification data for inventory and range use. Review the specifications above to ensure compatibility with your rifle and intended use.
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.
