start at 25 yards to make adjustments quick. move back to 50 and shoot to affirm zero ( may have to adjust a little. at fifty see from back of box or web site were you want bullets to land from aiming point. for me it's 1.5" high at 50 yards with my 3" lightfield sabots. once it's shooting right at 50 yards fire once from 100 yards to confirm. i zeroed my gun in with about 5/6 rounds it took about a half hour. my scope was really high so if yours is lower than my it should zero in maybe 2/3 bullets quicker. good luck and happy hunting
