I haven't patterned my gun on paper yet. But used cremator 2 pack Carlson tubes today. Unfortionatly I did my share of missing with 5 shots that humbled me. knocked 2 down with 1 shot, 2 mallards and i'm sure these choke tubes are much better than the factory one's. I don't know....but I've always liked Remington steel in 1375 fps. been shooting it for a long time cause I can't afford the heavy stuff. Besides, I miss too much but there are times I nail em quick. Had all sorts of flybys today. with the wind. it was really fun being out there.