it would depend on the diameter of the jug taken out of the barrel..and the thickness of the barrel at the muzzel end.. that is the thickenss left of steel and the type of steel.. i have a mortimer 12 guage with a full jug choke.. the jug must be long enough to fit the entire load, that is wads and shot.. a fiber wad must be behind the shot so it can expand out to the jug, and then be choked down... theywork very well.. as stated above i also choose not to have a 540 grain round ball with patch blowing off to one side ruining a shot gun barrel that has been thinned more than the factory specs.. it could work fine.. but i dont see how it could be consistently accurate, but what do i know, i havnt tried it.. i also am chicken.. dave