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 303 Caliber 174 Grain MatchKing is very popular in England, Canada, and Australia for the 303 Lee-Enfield service rifle. This is not loaded ammunition.