These extraordinary loads combine the legendary Sierra MatchKing bullet with Federal's proven quality standards and stringent manufacturing controls to create a round that is as accurate as a match load, but available from the factory. Sierra MatchKing bullets have 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. This ammunition is new production, non-corrosive, in boxer-primed, reloadable brass cases.