Just took it back to the range. Found the paper at 25y, 50y, and 75y. I couldn't see the targets on the paper I was using at 100 because they were not the standard 8 inch black circle. I am now on target, but grouping badly. This is probably due to me not getting a super consistant sight picture. Using the sling from the prone, I get about 5 inch groups at 75 yards, centered around the bulls eye. The group is 5 inches high, and about 2 inches wide, but I believe that is me, not the gun.
The problem before is this... I started out shooting low, well below the paper (the rear sight was only 1 click above bottomed out, this time I started out 8 clicks which is 2 before 200) and the backing board was so chewed up my spotter thought I was far left. We built a new backer board about 5X5 feet so we could see any errant shots. Never missed the paper.