Sierra MatchKing bullets have very thin jackets and are held to exacting tolerances in diameter and weight. These Hollow Point Boat Tail bullets have a small meplat to produce a higher ballistic coefficient. Their accuracy has been acclaimed worldwide and they have been used to win more target competitions than all target bullets from other manufacturers combined. The 338 Caliber 300 Grain MatchKing has the highest ballistic coefficient of the MatchKing line. Loaded in magnum cartridges, this bullet is capable of consistent accuracy out past 1000 yards. This is not loaded ammunition.