Full choke twenties? Love 'em. Great for long doves, late season pheasants, ducks over decoys. I have 3, a pump and 2 doubles. They do all that 7/8 oz. or 1 oz. of shot can be expected to. For doves, 7/8 oz. of #8's can get pretty thin from an IC or mod. tube. Just my tcw. Chopper