I think you have 4 sets of horizontal parallel lines at the bottom of the reticle. The space between equals 1 Meter high at 400, 600, 800 an 1000 meters (or 1 Yard at 400, 600, 800 1K yards) large to small, right to left.
A quick way of ranging a man sized target belt/waist to top of the head.
Hope that is what you are asking, and that it makes sense.