Federal XM193I 5.56 ammunition is a product from the world famous Federal Cartridge Company. This particular load is designed for high-volume shooters and suitable for a range of applications, including practice, target shooting and training exercises. Every box of Federal XM193I 5.56 ammunition contains 500 rounds of military-grade ammunition. Manufactured to the highest specifications, each cartridge comes loaded with an M193 projectile. These 55 gr full metal jackets are the perfect choice for any AR-15 platform and those looking to take their shooting to the next level.