Remmington 223 Ammo for Sale - 200 Round Mega Pack For varmint hunting target shooting training exercises or any other high-volume shooting situation UMC1 centerfire rifle ammunition offers value without any 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 different rifle calibers. You d be hard pressed to find a better value anywhere. Now available in money-saving large-quantity 200-round Mega Packs!