I used to get tidy groups from an EIC Type F with 120+ grs of 2 F and a .750", ball, loaded with a thick (3/4" felt wad under and atop the ball, and a large dollop of udder cream or whatever between ball and top wad.
This is Bill Curtis' method and stood him well shooting for GB. ( MLAGB) in international matches.
We tried this load off a bench. (!) yep, it was stout and faces hurt afterwards. We did manage 3 1/2 -4" groups at 50 yards, but wasn't pleasant.

However! A pal in the UKicon has more recently shot scores in the mid 90's with a charge of no more than 85 grains! This has won him several Golds in both GB and international shoots. His load uses a patch on the ball. The Concours (Frenchicon) target is the one used internationally.