Mike,

I have a reticle print somewhere at home. The donut is 4 MOA top to bottom, 2 MOA inside diameter.

The first stadia line is for 400m with their ammo solution.

With the 75gr ammo in my guns, I have to aim the first line (400m) at the top of the plate to make hits.

No appreciable impact CG vs. FT for this application.