Global OrdnaGlobal Ordnance 5.56x45mm M193 55gr FMJ- 20rd Box – Global 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 box – Performance Specs: – Muzzle Velocity: 3162 fps (964 m/s ± 39 fps) – Muzzle Energy: 1218 ft-lbs (1649 J) – Chamber Pressure: 52300 psi (359 MPa) – Port Pressure: 14935 psi ± 2030 psi (103 MPa ± 14 MPa) – Accuracy: Average 5.0 cm (1.97) radius at 200 yards – Temperature Stability: Tested from -63°F to 129°F (-52°C to 54°C) – 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