When your first shot must count- choose Federal XM 223 Caliber Centerfire Rifle Ammunition. Cases are Brass Copper Alloy No. 260. Primers have an M41 Operating Range of -40 degrees to +125 degrees F. Primer Sealant is water resistant lacquer and the case mouth is sealed. No Case Knurl. Each loaded cartridge shall be head stamped with the manufacturer's symbol and year of manufacture. Accuracy equals 3-10 round groups not to exceed 2.00 inch mean radius maximum average at 200 yards. Chamber pressure of Piezotronic maximum average per 10 rounds - 55000 PSI in 5.56 test barrel - case mouth location. Bullet Pull Minimum individual 35 pounds. 100% mechanical and/or electrical detection of propellant levels within the cartridge. 100% visual inspection of finished cartridges prior to packaging.
Warning: For use in standard 5.56 mm chambers. Do not use in non-standard 5.56 chambers.
- Caliber :223 Remington - 5.56x45mm
- Bullet Type :Metal Case Boat-Tail
- Bullet Weight :55 GR
- Muzzle Energy :1223 ft lbs
- Muzzle Velocity :3165 fps
- Rounds/box :20 Rounds Per Box