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10mm Auto 150gr Xtreme Defense 20/Box
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Bullet Style: Solid Copper
Bullet Brand Style: Xtreme Defense
Bullet Weight (Grains): 150
Brand Style: Xtreme Hunter
Muzzle Energy: 677
Muzzle Velocity (feet per second): 1425
Cartridge: 10mm Auto
Rounds: 20
Ammo: Yes
Age restriction: 21 and above
Prop 65 restriction: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to -

Shooters were so impressed with Underwood Ammo’s Xtreme Defender product line that hunters demanded a similar round specially tailored for them. Well, Underwood Ammo answered with their new Xtreme Hunter line. With an optimized nose flute, the weight and velocity have been carefully tweaked to achieve max penetration and create a huge permanent wound cavity. With reduced recoil, the Underwood Ammo Xtreme Hunter’s specially designed nose CNC machined right into the solid copper slug, busts straight through barriers like they’re not even there. All that frontal surface area hits the target hard, too.

  • Bullet weight: 150 grains
  • Muzzle velocity: 1,425 fps
  • Muzzle energy: 677 ft/lbs
  • 20 rounds per box

No other expanding bullet performs as well as the Underwood Ammo Xtreme Defender.

Ammo Restriction
You must be 18 years of age or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammuntion. Check your state and local laws for additional restrictions before ordering. It is your responsibilty to fully understand the laws in your area and to ensure that possession of this item would not violate any applicable state or local laws.

Always make sure you use the correct ammunition for your firearms. Ammunition pricing is per box. All ammunition must be shipped Domestic Ground. Due to safety considerations and legal/regulatory reasons, ammunition may not be returned.

View full restrictions here.

Prop 65WARNING: Lead - Discharging firearms in poorly ventilated areas, cleaning firearms, or handling ammunition may result in exposure to lead and other substances known to cause birth defects, reproductive harm, and other serious physical injury. Have adequate ventilation at all times. Wash hands thoroughly after exposure.

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