Underwood Ammo 432 45Colt 250gr Full Metal Jacket 50 Per Box/10 Case

The Underwood Ammo .45 Colt 250-grain full metal jacket round delivers proven performance for hunters and shooters who value a subsonic handgun cartridge. This is new production ammunition built on nickel-plated brass cases that are boxer-primed and reloadable, making it a practical choice for shooters who reload. Each round is loaded to 960 feet per second, keeping velocity below the sound barrier—ideal if you're running a suppressor on your .45 Colt revolver or pistol. The 250-grain copper-lead bullet generates 512 foot-pounds of muzzle energy, offering the terminal performance you need for hunting medium game and self-defense applications.

What sets this round apart is its thoughtful engineering for suppressors. The subsonic velocity and full metal jacket construction work together to deliver consistent, reliable performance downrange while keeping noise signature low. The nickel-plated brass case resists corrosion and handles repeated handling and reloading cycles without degradation. Whether you're working up loads or grabbing factory ammo for a hunting trip, the bright cases are easy to spot on the bench or in the field.

Underwood Ammo has built a reputation among handgun hunters and precision shooters for attention to detail, and this .45 Colt load reflects that standard. The ammunition is non-corrosive and manufactured to consistent pressures, so you get uniform ballistics shot to shot. Comes in boxes of 50 rounds, with bulk packaging available in cases of 10 boxes for shooters who move volume.

Key Features

• Subsonic velocity (960 fps) optimized for suppressor use
• New production, boxer-primed brass—reloadable
• Nickel-plated cases resist corrosion and wear
• 250-grain full metal jacket bullet for reliable feeding and performance
• Non-corrosive; safe for all standard .45 Colt firearms
• 512 ft-lbs muzzle energy suitable for hunting and self-defense

Specifications

Frequently Asked Questions

Is this ammunition safe to use with a .45 Colt suppressor?

Yes. This round is specifically designed to be suppressor-safe, with subsonic velocity (960 fps) that travels below the sound barrier. The full metal jacket construction and controlled pressure loading make it a reliable choice for sound-moderated .45 Colt firearms.

Can I reload these brass cases?

Yes. The ammunition comes in boxer-primed, nickel-plated brass cases that are fully reloadable. The bright nickel plating makes them easy to sort and handle on the reloading bench.

What's the bullet construction?

The bullet is a 250-grain full metal jacket made from copper and lead. The FMJ design ensures reliable feeding in revolvers and semi-automatic .45 Colt pistols and provides consistent performance for hunting and self-defense use.

How much ammunition is in a case?

One case contains 10 boxes of 50 rounds each, for a total of 500 rounds per case.