I use a 535 ball with a 20 th. patch in the 54's and a 490 ball with a 20 th. patch in the 50 and a .440 ball with the same patch in the 45. I use a light coat of olive oil as a patch lube. The only thing that I could not find a good shooting load with is T7 it consistently burned of the patch and a wad with round ball seems a bit far out to me.