Underwood Xtreme Defense Platinum 9mm 68gr
Underwood's solid copper Xtreme Defense round delivers 1700 fps velocity with optimized penetration and permanent wound cavity. Nickel-plated brass, lead-free, suppressor-safe.
Underwood Xtreme Defense Platinum 9mm Luger
The Xtreme Defense Platinum represents a significant advancement in defensive handgun ammunition. Built on proven Xtreme Penetrator technology, this round combines precision engineering with real-world stopping power.
Performance Characteristics
- Velocity: 1700 feet per second
- Bullet Weight: 68 grains
- Muzzle Energy: 436 foot-pounds
- Caliber: 9mm Luger (.355 diameter)
- Construction: Solid copper monolithic design
- Lead-Free: Yes
Design Features
The Xtreme Defense employs an optimized nose flute geometry that achieves penetration depths up to 18 inches while creating a permanent wound cavity over 100% larger than conventional expanding hollow points. The solid copper body ensures consistent performance even when fired through common barriers—wallboard, sheet metal, and automotive glass have no effect on terminal performance.
Ammunition Specifications
- Case: Nickel-plated brass (boxer-primed, reloadable)
- Ballistic Coefficient: 0.087 (G1)
- Sectional Density: 0.077
- Supersonic: Yes
- Suppressor-Safe: Yes
- Quantity: 20 rounds per box
Why Nickel-Plated Brass?
Nickel plating provides superior corrosion resistance compared to traditional brass, won't tarnish during storage, and resists discoloration from contact with leather, moisture, and other metals. The process also enhances feeding reliability across all firearm actions and simplifies cleanup during reloading.
This is new production, non-corrosive ammunition designed specifically for self-defense applications where reliability and terminal performance are non-negotiable.
