Pedersoli Remington, at the minute im using 24 grains of Kranks cheap and cheerful, "fine", 16 grains of semolina, .454 ball (LEE mould), lube.
I use a LEE perfect powder measure for the BP

13 shots @ 25m
https://i.ibb.co/tqM8hQZ/03-A6-B4-C6...-E8-DE7314.png