UMC Features 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. UMC Specifications Caliber: 22-250 Rem Model: UMC Bullet Weight: 50 gr Rounds Per Box: 40 Casing Material: Brass Application: Varmint Target Training Bullet Type: Jacketed Hollow Point (JHP) Muzzle Energy: 1620 ft lbs Muzzle Velocity: 3820 fps