Yes that was not expected on the first time out to see what would happen! And yes now time to go to 50 and beyond. As you all know, the "sights" were not really made for precision target shooting and my eyes are sure not what they once were. In answer to your question, for now, a 4 dram load and the same load of wads will be tried the next time. Probably be another 2 weeks before that will happen as I am now in Florida. Recoil is "firm" from the bench but not as stout as my AH .500BPE single with a 400 grain PP bullet and the steel butt plate at 6.5 pounds or my WR 5 bore at 6 drams and a 1150 grain lead ball. The deer at 40 yards that I shot, was knocked off her feet with that load.
Again, I thank all of you and your years of testing and sharing what works for you and your beautiful guns as it keeps me from trying to reinvent or learn what works with these guns and rifles.