Underwood Ammo Handgun Ammunition Features Underwood Ammo builds this .45 Winchester Magnum load around a 230 grain jacketed hollow point bullet a weight and profile chosen for consistent expansion and controlled penetration on impact. At a muzzle velocity of 1 600 feet per second the round generates 1 307 foot pounds of muzzle energy putting it well ahead of standard .45 ACP loads in raw power delivery. This level of energy makes the cartridge a strong choice for hunters pursuing medium to large game where the .45 Winchester Magnum platform is chambered. The jacketed construction also helps the bullet hold together through heavier bone and tissue compared to unjacketed designs. Loaded in a brass case this ammunition is built to the quality standard Underwood has established across its performance-oriented product line. Packaged 20 rounds per box the quantity is typical for premium defensive and hunting loads where cost per round reflects the specialized performance delivered. Shooters running firearms chambered in .45 Winchester Magnum often seek out loads like this specifically for the added velocity and energy the cartridge was designed to deliver. For hunters and shooters who want maximum performance from their .45 Winchester Magnum platform this Underwood load is built to perform. Underwood Ammo Handgun Ammunition Specifications Manufacturer: Underwood Ammo Model: Handgun Ammunition Caliber: .45 Win Mag Bullet Type: Jacketed Hollow Point Bullet Weight: 230 Grains Velocity: 1600 FPS Muzzle Energy: 1307 ft-lbs Rounds Per Box: 20 Available At: GrabAGun