Enable Accessibility
Brownells 75th Anniversary - A Shooting Heritage

Hide and Bone are Meaningless to this Round

If you’re a hunter with a big .450 Bushmaster, the Underwood Ammo Xtreme Hunter line of ammo is just the ticket for you. Stemming from Underwood Ammo’s renowned Xtreme Defender line, the Xtreme Hunter produces a massive permanent wound cavity deep inside the target. No other expanding hollow point comes close to delivering the same performance.

With the CNC machined solid copper projectile, the Underwood Xtreme Hunter flies through barriers like they’re not even there.  Hide, bone, brush, it doesn’t matter to the Xtreme Hunter.

  • Bullet weight: 220 grains
  • Muzzle velocity: 2,385 fps
  • Muzzle energy: 2,279 ft/lbs
  • 20 rounds per box

Radial flutes, massive pressure differentials, optimized frontal surface area, barrier breaking edges—it all adds up to the power that your inner Tim “The Tool Man” Taylor wants.

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.


Please choose from the available options to purchase an item.