I'm wondering if you are getting different POIs as a result of setting the rifle on the bags at different locations.
Could be
Bronko. I was really paying attention to technique for the first target. But got a little sloppy after that, what with having to wipe my face and glasses between shots.
How far out can you keep that Cherokee to one-inch groups?
Next time out with this gun I'm going to shoot it over the chronograph with 20, 25, 30, 35 and 40 grain charges just for giggles.