Thanks SSA & Big Al - the 9.8 MOA above the bull (10.26" if we're getting technical) using the post makes sense to me now. I want my POI at 100 yards to be 1.5 MOA high, this gives me a zero yardage of 127 yards. An 8.3 MOA drop on my ballistics chart indicates an estimated POI on the bull at 189 yards.
I'm all set, thanks.
What direction did that last shot at Kennedy come from?