well matt im shooting a mossberg 500pump with a 25inch " slugster" barrel (smoothebore) an i have a leupold VX shotgun scope with leupold rings, i opted to buy the sweetest scope i could find bad experiance opening day missed a small 6 pt and i was bummed then an 8pt with baseball bat tines and long sweepy beams and i missed[:' (][:@][X(] then figured the iron sight was off, which it was!