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This Underwood load pushes a 230 grain jacketed hollow point to a staggering 1000 feet per second, generating over 500 foot-pounds of energy at the muzzle. That's serious stopping power packed into a standard .45 ACP cartridge. The round is built with nickel-plated brass casings that feed reliably and resist tarnishing better than standard brass, making storage and reloading easier down the road.
What makes this load different from standard .45 ACP ammunition is the extra velocity without needing to go to a lighter bullet. The 230 grain bullet is the classic .45 ACP weight, giving you all the momentum and tissue disruption you'd expect from the caliber, just with a velocity boost. The +P pressure rating means this round needs a firearm rated for high-pressure loads—most modern .45 ACP handguns handle it fine, but older models or those with tight tolerances warrant a check before running it.
Every round uses flash-suppressed powder so your vision stays sharp if you ever need to use it in low-light conditions. The ammunition is new production, non-corrosive with boxer primers, making it fully reloadable for those who want to reload their brass. You get 20 rounds per box, making it easy to test a load or keep your carry gun topped off.
+P ammunition operates at higher pressure than standard .45 ACP, so you need a firearm rated to handle +P loads. Most modern .45 ACP handguns, including Glocks, 1911s, and XDs, are built for +P rounds. If you have an older or compact model, check your manual or contact the manufacturer to confirm it's rated for +P before using this load.
The extra velocity generates more energy at the target and can improve hollow point expansion, especially from shorter barrels where standard loads might slow down. The 230 grain weight stays the same, so you keep the .45's natural stopping power while getting a ballistics boost—it's like getting more out of the caliber without changing what the gun shoots.
Yes, this ammunition comes in boxer-primed, reloadable nickel-plated brass cases. Nickel plating makes reloading easier since the cases resist corrosion and stay cleaner than standard brass. Just follow established reloading guidelines for +P loads, since they operate at higher pressures than standard .45 ACP.
Underwood is known for field-testing loads in real firearms and maintains strict quality control on each round. Users report consistent velocities that match advertised specs and reliable feeding across different .45 ACP platforms. The combination of quality components and careful assembly makes this ammo reliable for carry or defensive use.
Flash-suppressed powder minimizes muzzle flash, which is critical if you ever need to use your firearm in low-light conditions. The less visible flash means your vision stays adjusted to the darkness, giving you a tactical advantage and better target acquisition for follow-up shots if needed.
Standard .45 ACP usually runs around 850-870 fps from a full-size barrel, while this +P load hits 1000 fps, delivering significantly more energy. The tradeoff is more recoil and faster wear on your gun, but if your firearm is rated for +P, the extra performance is worth it for self-defense applications where every bit of stopping power counts.
| Caliber/Gauge | .45 ACP |
|---|---|
| Case Material | Nickel-Plated Brass |
| Cost per Round | 1.15 |
| Grains | 230 gr |
| Length | 3.1000 |
| Manufacturer | |
| Manufacturer Part Number | 334 |
| Shipping Weight | 1.01 |
| Units per Box | 20 |
| UPC | 816874020293 |
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