What do you do at like 250 meters with an acog? Like for the drop from 100 to 200 yards with M193 is 2 inches which is 1 MOA which is negligible. You can easily just put red on the target and pull the trigger or use the tip of the chevron and 2 inches generally won't make or break a shot at 200 yards. The difference between 200 and 300 yards is 3 MOA or 9 inches. 250 yards has 5.5 inches of drop from 100 yards and is 5 inches high compared to the 300 meter zero point. Do you use the top of the post or does it just really not matter?