Many yhears ago, the American Rifleman published an article on 45ACP shotloads using a shortened 308 Winchester case, and a cut down Remington plastic 410 wad. In purchased the forming and reloading die set from RCBS at that time, formed 50 cases and never completed the project - still on my to do list. As I remeber the article cautioned against using those loads in a revolver since primer setback could tie up the cylinder.