I took the scope off and found a few small burrs on the front base. I used a fine file to remove them and carefully stoned that area to get it real smooth. The scope was loose on the front base when I took it off. Either it shot loose or I didn't tighten it enough. With those fine threads I'm kinda chicken.
The Unertl guy told me to use a quarter in tightening the scope on the base. Then it would be tight enough to stay put. I did so and it seemed more snug than before. The next match the scope worked perfectly and the POI didn't jump all over the target. It was just minor things but correcting them made a big difference.
Now I need to practice enough to be able to shoot more like I once could. I have a good 50 and 100 yd. range just outside my office. The neighbors are going to hear shooting till I am more satisfied.
