Brownells 75th Anniversary - A Shooting Heritage

Good for the Environment. Bad for Your Target.

Underwood Ammo has done it again, combining their signature precision and power with Lehigh Defense’s fantastic Xtreme Penetrator bullets, resulting in one heck of a round. The Underwood Ammo Xtreme Penetrator round is solid copper, and comes with a unique nose design that amplifies penetration inside the target, not to mention improves magazine feeding reliability.

The Underwood Ammo Xtreme Penetrator increases the hydraulic velocity inside the target, creating pressure spikes which creates a larger permanent wound cavity. And being solid copper, this thing really penetrates deep.

  • Weight: 302 grains
  • Muzzle velocity: 1,840 fps
  • Muzzle energy: 2,255 ft/lbs
  • 20 rounds per box

The Underwood Ammo Xtreme Predator round punches through barriers and deflection too, making it an ideal choice for dense woods and other applications.

You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition. All ammunition must be shipped Domestic Ground. Shipping not available for International residents. Residents in CA, DC, IL, MA, NY, CT, and NJ may have additional restrictions. Always make sure you use the correct ammunition for your firearms. Check your state and local laws for any other applicable firearms and ammunition regulations. Due to Department of Transportation regulations, we cannot accept returns on ammo. Please check local laws before ordering. View full restrictions here.

Ammunition pricing is per box.

ATTENTION – California Customers
Brownells is still shipping ammunition orders to California but the process has changed to comply with California Proposition 63. We must now ship ammunition purchased online to an FFL or California-approved ammunition dealer. After placing your order, a Brownells representative will contact you to ensure your ammunition arrives quickly and in compliance with the law.


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