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The Underwood Xtreme Defense Platinum stands out in a crowded self-defense market because it doesn't try to work like traditional hollow points. The solid copper bullet is CNC machined from start to finish and features radial flutes designed to exploit hydraulic energy for terminal performance. There's no reliance on expansion, which means it performs consistently whether it passes through barriers, clothing, or glass. The 90-grain projectile moves at 1475 feet per second with 435 foot-pounds of muzzle energy, giving you genuine +P power without the brutal recoil of heavier 124-grain loads.
The Platinum Edition coating on these bullets delivers corrosion resistance that matters when your carry ammo sits for months or years. In wet, humid, or even salt water environments, that protective layer prevents oxidation and verdigris while maintaining the copper's integrity. You're also getting improved feeding due to the dry-film lubrication built into the coating, which cuts down friction across the feed ramp and chamber entrance. The result is less binding in tight firearms and reduced barrel wear compared to standard monolithic projectiles.
The nickel-plated brass cases are boxer-primed and reloadable, meaning you get extra value out of each round. The flash-suppressed powder formula ensures your vision stays intact if you need to defend yourself in darkness. Testing happens with actual firearms people carry and own, not lab conditions, so you can trust that these rounds will perform the way Underwood promises. Lead-free composition means you can practice more comfortably at indoor ranges without respiratory concerns.
With penetration reaching up to 18 inches in testing and a permanent wound cavity dramatically larger than conventional expanding ammunition, the Xtreme Defense lives up to its name. The narrow nose profile feeds more reliably than wide-brim hollow points, and because there's no expansion dependency, performance stays consistent regardless of what's between you and your target. Each box contains 20 rounds of new production, non-corrosive ammunition backed by Underwood's quality control reputation.
The Xtreme Defense Platinum is loaded to standard +P pressure levels and is safe for firearms rated for 9mm +P ammunition. Always verify your firearm's manual to confirm it supports +P loads. The narrow bullet profile feeds more reliably than wide-brim designs, and the solid copper construction won't deposit lead fouling in your barrel.
The solid copper design doesn't expand like traditional hollow points, but it creates a much larger wound cavity through hydraulic energy displacement from its radial flutes. This approach provides consistent performance through barriers and clothing without relying on expansion. Many find it more predictable than hollow points that may fail to expand under certain conditions.
Yes, the nickel-plated brass cases are boxer-primed and fully reloadable. The improved nickel plating process used by Underwood prevents embrittlement, so these cases hold up better for reloading than traditional nickel-plated brass, especially with +P pressures.
The flash-suppressed powder reduces muzzle flash in low-light conditions, allowing you to maintain your vision if you need to defend yourself at night. This is particularly valuable in defensive situations where your ability to see your target and surroundings immediately matters.
| Caliber/Gauge | 9mm |
|---|---|
| Case Material | Nickel-Plated Brass |
| Cost per Round | 1.45 |
| Grains | 90 gr |
| Manufacturer | |
| Manufacturer Part Number | 876 |
| Shipping Weight | 0.5 |
| Units per Box | 20 |
| UPC | 816874027612 |
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