Sierra .30 195gr TMK Match (100 Pack). 30 Caliber 7. 62mm (. 308) 195 gr. Tipped MatchKing (TMK) 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. Since the release of the popular Tipped MatchKing (TMK) line, we have been asked many times for a heavier version than the 30