Global Ordnance 5.56x45mm M193 55gr FMJ - 20rd BoxGlobal Ordnance 5.56x45mm M193 ammunition is factory-new brass-cased Boxer-primed and reloadable offering military-grade performance in a commercially available package. Manufactured to strict NATO STANAG 4172 and MIL-C-9963F specifications this high-quality ammunition is designed for reliable function and accuracy in 5.56mm firearms.Key Features: Caliber: 5.56x45mm M193 Bullet Weight: 55 Grains Bullet Type: Full Metal Jacket (FMJ) Case Type: Brass (Reloadable) Primer Type: Boxer Packaging: 20-round boxPerformance Specs: Muzzle Velocity: 3162 fps (964 m/s A 39 fps) Muzzle Energy: 1218 ft-lbs (1649 J) Chamber Pressure: a 52300 psi (359 MPa) Port Pressure: 14935 psi A 2030 psi (103 MPa A 14 MPa) Accuracy: Average 5.0 cm (1.97") radius at 200 yards Temperature Stability: Tested from -63AdegF to 129AdegF (-52AdegC to 54AdegC)Designed for peak performance this ammunition delivers consistent velocity pressure stability and exceptional accuracy ensuring flawless function in a variety of 5.56mm platforms including AR-15 rifles. Perfect for training target shooting and high-volume range sessions Global Ordnance M193 is reliable and precision-engineered for shooters who demand consistency and performance.nce 5.56x45mm M193 55gr FMJ - 20rd Box