Underwood Ammo194200443
Underwood Ammo 155Underwood Ammo 155 Xtreme Penetrator 9mmLuger 115gr Solid Monolithic 20 Per Box/10 Case$31.99
Availability: In Stock
The Underwood Ammo 9mm Luger +P+ 115gr Xtreme Penetrator is a solid copper handgun round built for shooters who demand straight-line penetration and barrier-defeating performance. Loaded to +P+ pressure levels and clocking 1350 fps muzzle velocity, this round combines Underwood's power engineering with Lehigh Defense's monolithic bullet design—a pairing made for serious defensive work and range testing alike. Unlike traditional hollow-points, the solid copper construction means no fragmentation, no deflection off barriers, and predictable deep wound channels.
The Xtreme Penetrator's distinctive blunt nose geometry is engineered to transfer energy efficiently on impact while shedding hydraulic velocity spikes through the target. That translates to reliable penetration through common defensive barriers—drywall, auto glass, heavy clothing—without sacrificing accuracy or magazine feeding reliability. The sharp cutting edges characteristic of solid copper bullets bite through entry materials cleanly, so you get consistent performance round to round.
This is ammunition for the shooter who understands the difference between marketing and terminal ballistics. Twenty rounds per box, packaged in a ten-box case, Underwood's Xtreme Penetrator rounds are tested and loaded to exacting standards. Whether you're running defensive drills at the range or keeping loaded magazines in your nightstand, you're working with a round engineered for what matters most: reliable, predictable performance when it counts.
| Caliber | 9mm Luger +P+ |
| Bullet Weight | 115 grains |
| Bullet Construction | Solid copper monolithic |
| Muzzle Velocity | 1350 fps |
| Rounds Per Box | 20 |
| Boxes Per Case | 10 |
Solid copper monolithic bullets don't expand or fragment on impact. Instead, they rely on their design geometry—in this case, the blunt nose and sharp cutting edges—to create a wound column through straight penetration. This means more predictable performance through barriers and more consistent terminal behavior across different target materials.
The Xtreme Penetrator is designed with defensive use in mind. The solid copper construction and barrier-penetrating geometry make it suitable for home defense and personal protection applications. Always verify that any ammunition meets your local and state laws before use.
Not all 9mm firearms are rated for +P+ ammunition. Check your firearm's manual or manufacturer specifications to confirm it is rated for +P+ pressures before using this ammunition. Using over-pressure ammunition in an unrated firearm can cause damage or unsafe conditions.
+P+ is a higher pressure rating than standard or +P 9mm loads, designed to deliver increased velocity and energy. This ammunition is loaded to +P+ specification for maximum performance, but always confirm your firearm is rated for this pressure level before shooting.
SKU: 194201755 • Width: 2.2in • Height: 1.4in • Depth: 2.6in • Weight: 0.57oz
Availability: In Stock
The Underwood Ammo 9mm Luger +P+ 115gr Xtreme Penetrator is a solid copper handgun round built for shooters who demand straight-line penetration and barrier-defeating performance. Loaded to +P+ pressure levels and clocking 1350 fps muzzle velocity, this round combines Underwood's power engineering with Lehigh Defense's monolithic bullet design—a pairing made for serious defensive work and range testing alike. Unlike traditional hollow-points, the solid copper construction means no fragmentation, no deflection off barriers, and predictable deep wound channels.
The Xtreme Penetrator's distinctive blunt nose geometry is engineered to transfer energy efficiently on impact while shedding hydraulic velocity spikes through the target. That translates to reliable penetration through common defensive barriers—drywall, auto glass, heavy clothing—without sacrificing accuracy or magazine feeding reliability. The sharp cutting edges characteristic of solid copper bullets bite through entry materials cleanly, so you get consistent performance round to round.
This is ammunition for the shooter who understands the difference between marketing and terminal ballistics. Twenty rounds per box, packaged in a ten-box case, Underwood's Xtreme Penetrator rounds are tested and loaded to exacting standards. Whether you're running defensive drills at the range or keeping loaded magazines in your nightstand, you're working with a round engineered for what matters most: reliable, predictable performance when it counts.
| Caliber | 9mm Luger +P+ |
| Bullet Weight | 115 grains |
| Bullet Construction | Solid copper monolithic |
| Muzzle Velocity | 1350 fps |
| Rounds Per Box | 20 |
| Boxes Per Case | 10 |
Solid copper monolithic bullets don't expand or fragment on impact. Instead, they rely on their design geometry—in this case, the blunt nose and sharp cutting edges—to create a wound column through straight penetration. This means more predictable performance through barriers and more consistent terminal behavior across different target materials.
The Xtreme Penetrator is designed with defensive use in mind. The solid copper construction and barrier-penetrating geometry make it suitable for home defense and personal protection applications. Always verify that any ammunition meets your local and state laws before use.
Not all 9mm firearms are rated for +P+ ammunition. Check your firearm's manual or manufacturer specifications to confirm it is rated for +P+ pressures before using this ammunition. Using over-pressure ammunition in an unrated firearm can cause damage or unsafe conditions.
+P+ is a higher pressure rating than standard or +P 9mm loads, designed to deliver increased velocity and energy. This ammunition is loaded to +P+ specification for maximum performance, but always confirm your firearm is rated for this pressure level before shooting.
SKU: 194201755 • Width: 2.2in • Height: 1.4in • Depth: 2.6in • Weight: 0.57oz