#7 shot isn't legal here, the DEM doesn't care if it's lead, Heavy Shot, or anything else. I have a 20" 835 and shoot 3.5" 2.25 oz #6 Hevi-13s. Not quite as many pellets but I do put about 200 in a 10" circle at 40 yards. I mis-judged the distance to the last bird I shot. I thought he was at 40 yards and took the shot. He went down hard. Afterwards I paced off the distance and it was about 50 yards. Good enough for me.