I did shoot at a large piece of cardboard from the 25 at the very beginning.  The pattern wad dead center and a tad high.  I felt it was fine because at 40 i would think it would open up a little more and may have an inch or two of drop.  If I look at the back of the paper targets I shot at 40, the pattern does look very even.  I think that the low and right was just my point of aim on that particular shot.  I ended up putting a dead ringer ghost ring - fiber optic sight on which I am pretty pleased with.  I like peep sights because it gives you a good field of view and forces you to get your head down on the rear sight.  I found out their company is in western NY so I like to support local business when I can.  I should have shot a large piece of cardboard at 40 but I seriously could not shoot any more rounds.  I have shot hevi before and do not remember them with this much kick.  Maybe less oz of shot in previous 3.5's.  I have shot straight 6's previously (any turkey I shoot with them does not flop - they drop like a pile of rocks.)  I picked up the mags with the rebate bass pro had.  I would really like to put a fast fire on but am hesitant to do so because my SBE is not drilled and tapped.  I am not sure what my mounting options are but I am hesitant to mess with such a nice gun.