Oh man, you have a 28 - incher? Yeah, that's a long one. Although the position I described would position the trigger closer to the body, it would probably still be too far away. Personally, I'd saw the barrel off. One could, also, place a dowel rod or pipe between the trigger and trigger guard and then position the gun so that the stock is butted up against a wall or something. Then the feet could be used to push on each side of the dowel, which, in turn, would push against the trigger and fire the gun. If I had to go this route, I'd do some practicing with this technique and an unloaded gun.