For a 50/200 zero, you want the point of impact to be about an inch low at 25 yards. A 50/200 zero offers the shallowest angle of trajectory. From point blank out to 250 yards the point of impact will be within a few inches (2 or 3) high or low and will be dead on at 50 and 200 yards. No need to adjust for hold overs, just aim for center mass and you'll be good to go.