BTM,
I didn't have large groups. POI changed after I cleaned the rifle. I was using shooting sticks and not a solid rest so I didn't expect 1 MOA groups. What I got from the whole thing was confirmation on things I've read in a few different publications regarding rifles shooting high once you clean them. I've suspected that this was true, and this experience confirmed it. I was surprise that it took 4 shots to get it back to were it was shooting before I cleaned it.