Joe, to give you an idea at 81 yards, aiming at the center of the 30" circle, the #5 pellets were lower, aiming at the top of the 30" circle seemed to put them in the circle better, but some were stuck in the 2"x 2" posts below.
The load used was trying to replicate a 3" load used then, but used modern powder and a modern wad to try and get as close as possible. Also it was bench rested.
At another 20 yards, I can only imagine how far the drop would be.

David