First you must determine the diameter of the choke you'll be shooting through.
Then you must either get a source of roundball of exactly that size, or have a mould made that will produce ball of the right size and cast them yourself.

From there you need to find the right shot cups to modify, or get pre-made gas seals, like these

Ballistic Products gas seals

You will also need overpowder cards, lubed wads, and blackpowder.
For choke-sized ball, I'd use somewhere between 2 and 2-1/2 drams of Goex FFg blackpowder.

Process:
-trim primed hulls to length
-pour blackpowder into hull
-add overpowder card
-add enough properly lubricated wadding to get the above noted gas seal and roundball up to the end of the case, with just enough room for a good roll crimp
-roll crimp the case

There you have it!
With the right blackpowder lubricant, and enough of it (in the wadding) your fouling will be soft and follow-up shots will not require swabbing or cleaning before shooting.

I don't have smokeless recipes for you.
You'll have to research that on your own.

--Tinker