This 300 AAC Blackout cartridge is loaded with a 125 Grain Sierra MatchKing bullet so it is sure to deliver the performance you are looking for. MatchKing rifle bullets are super-accurate bullets with very thin jackets and are held to exacting tolerances in diameter and weight. Their accuracy has been acclaimed worldwide and they have been used to win more target competitions than all target bullets from other manufacturers combined. Weight retention is held to within +/- 0.3 grain. Each bullet is a hollow point and is designed with a very small meplat in order to achieve the highest ballistic coefficient possible. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.