Hunted in north Louisiana when growing up with a 12 gage, full choke, auto, 2 3/4" shells. Prefer # 1 Bucks or # 0's. Longest kill about 55 yds. Believe # 4B's to be too small, and # 00B's to have too few pellets for deer. Range should be out to about 60 yds. Past that I have not patterned the shot.