For varmint hunting target shooting training exercises or any other high-volume shooting situation UMC centerfire rifle ammunition offers great value with absolutely no compromise in quality or performance. Loaded right here in the USA UMC rifle ammunition offers the choice of either metal-case or jacketed hollow point bullets in several popular rifle calibers. – Caliber: 223 Remington – Bullet Type: Full Metal Jacket – Bullet Weight: 55 gr – Muzzle Energy: 1282 ft / lbs – Muzzle Velocity: 3240 fps – Rounds Per Box: 20