First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo 20 Rounds 556 55 loaded

First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammo 20 Rounds 556 55 loaded. 56 NATO 55 grain match-grade ammunition. FB USA .223REM Headstamp. Specifications for First Breach 5.56 NATO 55 Grain Full Metal Jacket Boattail New C220 Brass Cased Rifle Ammunition: Manufacturer: First Breach Caliber: 5.56x45mm NATO Number of Rounds: 20 Bullet Type: Full Metal Jacket (FMJ) Bullet Weight: 55 grain Cartridge Case Material: Brass Package Contents: First Breach 5.56