Wolf .223 AR15 Rifle Ammo per 1000 Round Case Imported Russian steel cased ammunition. 20 rounds per box of Wolf .223 Full Metal Jacket, 55 grain ammunition. Consistent loads with precision-made Full Metal Jacket bullets provides tight-grouping accuracy at higher velocities. This 55-grain full metal jacket ammo is ideal for target shooting or plinking. Advanced Polymer Coated. Wolf has long been known to make affordable and long lasting ammunition that is great for target practice or any shooting needs you may have.