I have the 870 SPS super mag... With 3.5" Win HV #4's factory choke...I get about15-18 hits in the vitals at 40 yards... I killed my gobbler last spring at 56 paces... I'm figuring the shot at about 50 yards... I will pattern my gun at 50 yards in the next couple weeks to see how many hits I get in the vitals... I've never patterned a gun that far until I got this super mag... Gun is awsome