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About This Underwood 10mm Ammunition

Defend yourself with the power of copper! Underwood loads these 10mm cartridges with Xtreme Penetrator bullets by Lehigh Defense. The low-fouling solid copper projectile won’t run afoul of anti-lead bullet laws, but that’s only the beginning of the reasons why it’s so special.

A monolithic bullet is much tougher than any lead-core, copper-jacket alternative. That’s why the Xtreme Penetrator resists deformation and deflection alike as it passes through a barrier. Its flat nose profile maximizes energy transfer on impact. The Xtreme Penetrator proceeds to tunnel about twice as deep into its target as a standard JHP could have. While the bullet penetrates, its deep grooves actively scoop up, pressurize, and blast out all soft tissues they come into contact with. The result is a cavernous and extremely injurious permanent wound cavity.

The Xtreme Penetrator is backed up by Underwood’s high-quality components and craftsmanship. Reliable Boxer primers, low-friction nickel-plated brass cases, and suppressed-flash propellant all make Underwood the one to count on whether you’re hunting or defending.

Is the shipping free on this case of high-quality American-made 10mm ammo? It is, but only on days when the sun rises in the east.
Quantity 200
Manufacturer Underwood
Ammo Caliber 10mm
Manufacturer SKU 648
Bullet Type Solid Copper
Primer Type boxer
Muzzle Velocity 1500
Muzzle Energy 700
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