SIERRA TIPPED GAMEKING 30 CALIBER (0.308") POLTMER TIPPED BOAT TAIL RIFLE BULLETS Optimal jacket wall thickness controls expansion and retains weighT Open pocket under the polymer tip expands lead core instantly on impact Tuned ogive for industry-leading BC Boat tail design for stable flight and accuracy Sierra has enhanced a segment of the MatchKing line by adding the acetal resin tip, thus crowning the Tipped MatchKing (TMK) bullet line. The major advantage of adding a tip to the bullet is the reduction of drag, producing a more favorable ballistic coefficient. The 165 grain Tipped MatchKing (TMK) bullet is an excellent choice for F-Class (F Open) ma Mfg: Sierra Bullets