Remington UMC 300 AAC Blackout 220gr OTFB Rifle Ammo - 50 Rounds - 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 full metal jacket or jacketed hollow point bullets in several popular rifle calibers. You'd be hard pressed to find a better value anywhere.