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The Underwood Xtreme Defender Platinum tackles a real problem with pocket .380 defense rounds: when conventional hollow points hit heavy clothing or barriers, they clog and stop expanding. This load bypasses that issue entirely. The solid monolithic copper bullet features a fluted nose that creates hydraulic energy when it strikes soft tissue, producing massive wound cavities without relying on expansion. The non-expanding design also means it punches through barriers like winter coats, auto glass, and drywall without the performance loss that plagues traditional defensive rounds.
This round delivers penetration depth up to 18 inches in calibrated gel testing, well within FBI guidelines, while maintaining an enormous permanent wound cavity. The fluted copper construction redirects fluid forces radially outward to create tissue disruption comparable to expanded hollow points but without the failure modes. You get barrier-blind performance that works whether it encounters nothing or heavy intermediate obstacles.
At 1400 fps from the 68-grain solid copper bullet, the +P loading generates 296 foot-pounds of muzzle energy. That extra velocity matters in short .380 barrels where conventional loads often fall short. The ammunition uses flash-suppressed powder so low-light encounters won't compromise your vision, and it's new production, non-corrosive, and loaded in nickel-plated brass that handles storage and cleaning better than standard brass.
Each box contains 20 rounds of reloadable ammunition built for those who need their .380 to perform without compromise.
+P ammunition is loaded to higher pressure levels, so you'll want to verify your firearm's chamber is rated for it. If you're unsure, have a gunsmith inspect your specific pistol before using +P rounds. Underwood can also help confirm compatibility if you reach out to their customer service.
Traditional hollow points often fail to expand reliably from short .380 barrels, especially after passing through heavy clothing. The Xtreme Defender's fluted monolithic design creates massive wound cavities through hydraulic energy instead of expansion, delivering consistent performance through barriers where conventional defensive rounds fall flat.
Nickel plating improves corrosion resistance compared to standard brass, so your ammunition won't develop oxidation spots during long-term storage or concealed carry. It also enhances feeding reliability in various firearm actions and simplifies cleanup if you plan to reload these cases.
No, flash-suppressed powder is standard in modern defensive ammunition and doesn't impact accuracy or feeding. The benefit is preserving your night vision during low-light encounters when your eyes stay adjusted instead of being washed out by muzzle flash.
| Caliber/Gauge | .380 ACP |
|---|---|
| Case Material | Nickel-Plated Brass |
| Cost per Round | 1.50 |
| Grains | 68 gr |
| Manufacturer | |
| Manufacturer Part Number | 679 |
| Shipping Weight | 0.18 |
| Units per Box | 20 |
| UPC | 816874023690 |
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