What type of shotgun is it? What slug are you using? Rifled barrel? I have a Mossberg 500, rifled, use both3" Lightfield's and BRI's...deadly well over 100 yards. I took the 1.75x4 scope off and put a 3x9 on this past summer...exact same scope that's on my muzzy..although I should put a 4x12 on that.