This product is rifle ammunition chambered for the .50 Beowulf cartridge featuring a 420-grain copper solid Xtreme Penetrator bullet. It is intended for use in platforms chambered for .50 Beowulf where high-mass, solid-copper projectiles are specified. The cartridges are listed as reloadable and are supplied in standard retail boxes.
Packaging: This item is sold per box; each retail box contains 20 rounds. Case orders are fulfilled by ordering the required number of boxes—this listing indicates 10 boxes per case where applicable.
Key Specifications
- The caliber is .50 Beowulf.
- The bullet weight is 420 grains.
- The bullet type is Copper Solid.
- Each box contains 20 rounds.
- A case contains 10 boxes.
- The cartridges are listed as reloadable.
- The package dimension is 2.50 X 2.60 X 3.20.
- The package width is 2.6000.
- The package length is 3.2000.
- The package height is 2.5000.
Underwood’s 420-grain Xtreme Penetrator offers a consistent, high-mass copper-solid option for shooters who require the specific performance characteristics of .50 Beowulf ammunition; the product is supplied in 20-round boxes and is available in case quantities by ordering the indicated number of boxes.
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.




