Description
Underwood Ammo 817 Xtreme Defense is 9mm Luger +P+ handgun ammunition loaded with a 90 gr solid monolithic Xtreme Defender. Each box contains 20 rounds. The load uses an optimized nose flute and is designed for expansion through barriers, with a claimed penetration depth up to 18 inches and a permanent wound cavity (PWC) described as over 100% larger than other expanding bullets.
Key features
- Caliber: 9mm Luger +P+
- Bullet: 90 gr solid monolithic Xtreme Defender
- Optimized nose flute design
- Designed to expand while passing through barriers
- Claimed penetration depth up to 18 inches
- Permanent wound cavity (PWC) described as over 100% larger than other expanding bullets
| Caliber | 9mm Luger +P+ |
|---|---|
| Bullet Weight | 90 gr |
| Bullet Type | Solid Monolithic Xtreme Defender |
| Rounds per Box | 20 |
| Case Material | Nickel-Plated Brass |



