 If a competitor shoots within this ring they receive the ten points for shooting a ten, but also receive an additional "X" which serves as a tie breaker, if needed.For example, if one competitor ends a match with 487-14X (meaning 487 points with 14 X's) and another shooter ends with 487-20X, then the one that shot 20 X's will finish ahead of the one which only shot 14 X's.In service rifle matches, a competitor may use an M1 Garand style rifle, an M1A (M14) style rifle, an SR-25 (M110) style rifle, or an AR-15 (M16) style rifle.