On more suggestion on this...load up some different shells with differences in powder, shot and wads and pattern it. Most fiber wads you buy are 1/2" think, I cut those in half but then put both halves in the shells. I get a much better pattern, The 1/2" wad as whole seems to push through the shot and the pattern is awful.
There is some trial and error to this that is a lot of fun to figure out. Here is the order I would load into a 10 gauge primed shell for target shooting:
1. 3 drams of 2f black powder(I also like 1 1/2f)
2. 1 - 9 gauge 1/8" nitro card
3. 2 - 1/4" 9 gauge fiber wads made from a cut 1/2" wad, use both halves and I lube with bore butter or some other type of black powder lube.(you used to be able to buy these already lubed and I use those if I still have them).
4. 1 - 9 gauge overshot card on the wads(I like the shot on a clean surface).
5. 1 1/8oz of shot
6. 1 - 9 gauge overshot card glue in with ducco cement.
The best resource I found for me was:
https://www.trackofthewolf.com/Categ...BOOK-HL-10-BSS
There are some hot hunting loads in there(that work well), but you can load down for target shooting. It is such a valuable resource and I believe the author is a PGCA member.
Good luck! Every time I think about black powder shooting it makes me want to organize a hummer gun hunting trip...a few of us should get together and do this! Shooting the shells/loads our hammer guns would have shot when new.