1/4MOA is 1.5inches at 600 yards. Usually plenty good enough. It is hard for me to tell if I need to move the POI .75 or 1.5 at 600 yards. I have a 12-42 Benchrest and the 42x comes in handy some days. Others I don't turn it up past 30. My first scope was 5.5-22 and I still managed to shoot in the high 180's so what I'm trying to say is ......... well I don't actually know but when in doubt do what I do and "google"