Normally if I dedicate a round to a rifle, I use a card showing the required elevation at a given range. For me, usually, out to 300 yds. Knowing range and height of my target and required elevation gives me a strong likelyhood of a hit.
Maybe I missed it but is this shown in inches instead of a point on a target. BTW, my rifle is sighted in at 40 yds. Likely close enough given abilities/eyesight.