Underwood Ammo loads a Hornady XTP bullet in this .50 Beowulf 350gr jacketed hollow point (Underwood part no. 518), sold in a 20-round box. Underwood labels the cartridge 12.7×42 and says it is designed for use in .50 Beowulf firearms. Underwood rates the load at 1775 fps and 2449 ft-lbs and lists it for medium and large game. The Hornady eXtreme Terminal Performance bullet is built for deep terminal penetration, great accuracy and controlled expansion.

Key Specifications

• The cartridge designation is .50 Beowulf (12.7×42), the designation Underwood uses for this load.
• Bullet weight is 350 grains, the weight Underwood loads in this Hornady XTP cartridge.
• The bullet is a Hornady XTP jacketed hollow point, a Hornady eXtreme Terminal Performance bullet designed for deep penetration and controlled expansion.
• Underwood rates muzzle velocity at 1775 fps, a supersonic figure that tells you what to expect at the muzzle.
• Muzzle energy is listed at 2449 ft-lbs, the figure to compare against other loads in this cartridge.
• Each box contains 20 loaded rounds, which is the quantity you receive with this listing.
• Sectional density is 0.20, the ratio of the bullet’s mass to its cross-sectional area.
• The case is brass, a reloadable case.
• The G1 ballistic coefficient is 0.15, a number Underwood publishes alongside the load.
• Underwood states the load is safe to use in a suppressor, a point that matters to suppressor owners.

Frequently Asked Questions

Which rifles is this 12.7×42 load designed for? Underwood states that it designed the products on this page to be compatible with Alexander Arms’ .50 Beowulf and .50 BEO products, and that it has no affiliation with Alexander Arms and Alexander Arms has not independently verified those claims.

What bullet does it use? It uses a 350-grain Hornady eXtreme Terminal Performance (XTP) jacketed hollow point, which Underwood describes as designed for deep terminal penetration, great accuracy and controlled expansion.

Is it suppressor safe? Underwood states that this ammunition is safe to use in a suppressor.

Buy the Underwood .50 Beowulf 350gr XTP Jacketed Hollow Point, 20-Round Box

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