I was having trouble with my 45-70 shooting precisely, but shifting POI after so many shots. I thought I had it fixed a few days ago with a heavy duty bedding of the stock, but that wan't the problem, because 6 shots later the POI changed again.
Well, I had another problem, the action would open from time to time under recoil, and someone suggested I need the locking lugs needed filing. So I figured that could be the problem, since I knew the stock could not fit any better than it did. Sure enough, it has been 17 shots and the POI seems to be stable.
Now I have a good Ohio deer hunting rifle!