In traditional BP loads, you would use the same "volume" of BP and shot,
Prime the hull, a scoop of powder, an overpowder card, a fiber wad, a scoop of shot. If using a traditional roll crimp, an overshot card will be required. Wad height will vary with the hull used. Fiber wads can be doubled up or even split in half to get the proper wad height. NMLRA rules prohibit the use of plastic wads. I am not familiar with CAS rules, apparently they take a more liberal approach.
Without a shot cup, expect to find lead streaks in your barrel.
If you use a modern plastic wad, and the barrel gets hot, expect to be cleaning melted plastic out of your barrel.
I discard the hulls after one loading. They are nasty!