10 vacuum sealed 20rd boxes of 55gr .223 Remington ammo from PMC Ammunition. Bronze bridges a gap for target shooters or hunters who get genuine pleasure from challenging themselves, shot after shot, to become better marksmen.  Technical Specifications MPN 223A-BP Bullet Type: FMJ-BT Weight: 55 grain Velocity (feet per second)   Muzzle: 3200 100 Yds: 2833 200 Yds: 2493 300 Yds: 2180 400 Yds: 1893 500 Yds: 1635 Energy (foot-pounds)   Muzzle: 1250 Bullet Path (inches)   Muzzle: -1.50 100 Yds: +1.43 200 Yds: 0 300 Yds: -7.06 400 Yds: -21.48 500 Yds: -45.47 Ballistic Coefficient 0.243 Bullet Length 0.740 Sectional Density 0.156