HSM has become known as one of the top ammunition manufacturers in the country. HSM utilizes the highest quality components to offer extremely consistent, accurate, and high performing ammunition to shooters, hunters, and law enforcement. Sierra 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.