Barnes Bullets Subsonic 300 AAC Blackout OTM 220gr Rifle Ammo - 20 Rounds - Barnes Precision Match ammunition is engineered for precision at extreme distances. It features exceptionally low standard deviations and extreme variations due to Barnes exacting manufacturing and quality standards. Precision Match rounds are loaded with a Sierra Matchking projectile featuring a long boat tail and high B.C. .This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases. As an additional bonus, scan the QR code located on the back of each box to view Doppler radar generated drop tables specific to each load.