Underwood Ammo 940 10mm Auto Xtreme Defender 115 Grain Solid Monolithic Personal Defense Rounds

Underwood Ammo 940Underwood Ammo 940 Xtreme Defense Platinum 10mmAuto 115gr Solid Monolithic 20 Per Box/10 Case

The Underwood Ammo 940 Xtreme Defender offers superior protection with its high-performance design for personal defense. This 10mm Auto cartridge features a 115-grain solid monolithic bullet crafted from copper, optimized for maximum penetration and expansion. With a muzzle velocity of 1700 fps and muzzle energy of 738 ft-lbs, these rounds are engineered to achieve up to 18 inches of penetration with a significant permanent wound cavity (PWC), surpassing conventional hollow points in both size and effectiveness. The innovative nose flute design and total weight optimization enable consistent performance even when shot through barriers such as walls, sheet metal, or automotive glass. The solid copper construction ensures that barrier materials do not diminish the wound channel, making these rounds ideal for demanding self-defense scenarios. The nickel-plated brass casings enhance feeding reliability across various firearm actions and provide excellent corrosion resistance, maintaining their appearance and functionality over time. Additionally, the nickel plating prevents tarnishing during storage and exposure to moisture or foreign materials, ensuring reliable performance when it matters most. Each box contains 20 rounds, with ten boxes available per case, making these rounds suitable for comprehensive personal protection. Whether used for duty, training, or personal safety, Underwood’s Xtreme Defender ammunition delivers unmatched penetration and expansion capabilities, ensuring maximum effectiveness in critical situations.

Features:

• High-velocity performance with a muzzle velocity of 1700 fps

• Achieves up to 18 inches of penetration with a larger permanent wound cavity

• Optimized nose flute and total weight for barrier penetration and expansion

• Constructed with solid copper for consistent performance and barrier resistance

• Nickel-plated brass casings for improved feeding, corrosion resistance, and durability

• Designed for personal defense with reliable expansion and penetration through barriers

• Supersonic rating ensures rapid, effective delivery of energy