Haven't played with it anymore as deer season is in and I have it shooting great with Pyrodex R/S & a 300 gr XTP @ 100 yards. First shot with a clean barrel is always 2" high, and then it's dead-on for repeat shots.
In thinking about the problem I was having when I started this thread and the problems I had getting sighted in when I changed to Pyrodex I've decided it was probably the scope acting up. An inexpensive scope and adjustments are not repeatable. Once it "settled in" it's fine, but if I were to change elevation or windage a few clicks it may take 2 or 3 shots before it stays put. I've encountered the problem in cheap scopes before, but am so used to using better quality scopes I had not even thought about it. When season is over I will stick my Leuplod on it and see if does better, but for right now it's sighted in and staying there - so I'm not touching it!!!!