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 30 Caliber 155 Grain MatchKing was designed for use in PALMA competitions which require extreme accuracy at 800, 900, and 1000 yards. This is not loaded ammunition.