I am going to have to do the same thing HD because there is no way I am shooting 150 grains of powder in that rifle I have it mounted on. So I will just see where each mark hits. With the close range I have, I even considered sighting the main mark in for 50 yards and then seeing where each mark hits after that. A 200 yard shot where I live just is not going to happen unless I was hunting my buddy's hay field.