Does anyone have experience using shot loads in a .54 pistol? I'm wondering if there is a plastic shot cup (28 ga?) that will fit in my Lyman Plains pistol barrel, or am I going to have to use wads/cardboad with 1/2 ounce or 7/8 ounce of birdshot.? I'm thinking with a short bbl and no choke, this would throw a pretty wide pattern, but at 10 yards or so, might be an effective small game load. Has anyone tried this with a rifled .54 pistol?