Underwood Xtreme Penetrator 10mm Auto 140 Grain 20-Round

Underwood Ammo Xtreme Penetrator handgun ammunition is chambered in 10mm Auto and loaded with a 140-grain copper solid bullet. Each box contains 20 reloadable cartridges, with a listed muzzle velocity of 1,500 feet per second and muzzle energy of 700 foot-pounds.

The copper solid, lead-free bullet and nickel-plated brass case provide the specified construction for this supersonic 10mm Auto load. The product data lists hunting as an intended application.

Key Specifications

• This ammunition is chambered in 10mm Auto.
• The bullet weight is 140 grains.
• The bullet type is copper solid.
• The listed muzzle velocity is 1,500 feet per second.
• The listed muzzle energy is 700 foot-pounds.
• The case material is nickel-plated brass.
• Each box contains 20 cartridges.
• The ammunition is listed as reloadable.
• Each case contains 10 boxes.
• The load is rated supersonic.

With its specified 10mm Auto chambering, copper solid construction, reloadable nickel-plated brass cases, and 20-round box configuration, this Underwood load offers a clearly defined option for shooters seeking consistent, documented ammunition specifications.

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