I was aware of the big ACOG thread. My question is not about the trajectory, but about the point of aim with the reticle as shown in the manual.
Correction: there are 5 bars in the reticle, not 6. There isn't a 300-meter bar. That's my question, at 300, does the manual tell to aim with the bottom of the "donut"? It is on page 11. You see there are 8 silhouettes ranging from 100 to 800 meters. Look at the 3rd one, the one which correlates to 300 meters. Only starting at 400m, do you use the 400m bar. It is the 200m and 300m diagrams which are not clear to me.
I know that the trajectory drops about 20" between 100 and 300m (3.75 MOA). The drop between 100-200m is 3MOA. I also know that the "donut" itself is 4 MOA in diameter, according to the manual.
Does that mean I should sight it in at 100m using the top of the "donut", then at 200m expect the center of the donut (or slightly below the center) to be the point of aim, at 300m, the bottom of the donut being the point of aim and at then at 400m, 500m, 600m, 700m and 800m the BDC reticle (i.e. horizontal bars) kick in?
I think I am finally getting it, I just wanted to confirm.
Note: The silhoutte in the manual is 19" in width. Therefore, the 400m bar is roughly 4.75MOA (19"/4). That makes sense, as it is slightly bigger than the "donut".