Underwood Xtreme Defender 9mm +P+ 90gr Copper

Underwood Xtreme Defender: Purpose-Built Self-Defense Ammunition

The Xtreme Defender represents a thoughtful evolution in defensive ammunition design. Built on proven engineering principles, this round delivers performance characteristics specifically optimized for personal protection.

Ballistic Performance

• Velocity: 1550 feet per second
• Muzzle Energy: 480 foot-pounds
• Bullet Weight: 90 grains of solid copper
• Penetration: Engineered for 18-inch penetration depth with permanent wound cavity
• Barrier Performance: Maintains effectiveness through common obstacles

Design Features

The solid copper construction ensures consistent performance regardless of what lies between you and the threat. Unlike traditional hollow points, the Xtreme Defender's optimized nose flute and weight distribution create a permanent wound cavity significantly larger than competing designs—over 100 percent larger than conventional expanding ammunition.

The nickel-plated brass cases offer practical advantages: superior feeding reliability across all firearm actions, enhanced corrosion resistance compared to traditional brass, and easier cleanup for reloaders. These cases won't tarnish during storage or when exposed to moisture and other environmental factors.

Specifications

• Caliber: 9mm Luger +P+
• Bullet Diameter: 0.355 inch
• Case Type: Nickel-plated brass, boxer-primed, reloadable
• Ballistic Coefficient (G1): 0.087
• Sectional Density: 0.102
• Lead-Free: Yes
• Suppressor Safe: Yes
• Supersonic: Yes
• Packaging: 20 rounds per box

Application

This ammunition is purpose-built for self-defense and personal protection. The combination of deep penetration, massive wound cavity, and barrier-blind performance makes it a serious choice for those who carry a defensive firearm.