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 150 Grain MatchKing was originally developed for 300 meter international matches in the late 1950s. It is an excellent choice for medium range target shooting. This is not loaded ammunition.