Mine is still in the original caliber. I haven't done lot of load work with it, mainly because of the paucity of cases.  My "go to" load has been 4.0 gr Unique behind a close approximation of the original heeled bullet from a Group Buy mould custom made by Lee back when they did such work for groups of customers.

I have cases made by Kynoch (Berdan primed), Bertram (Boxer primed) and recently came into some custom cases made from shortened and rim-thinned .32-20 shells.

My rifle had the simple ladder rear sight and the triangular front.  It shot an annoying 3" to the left at 100 yd.  I replaced the rear sight with another Cadet sight that has windage adjustment and put a bead on the front for better visibility.

Now the I have enough cases to play with, and the thing can shoot to point of aim, I hope to do more load work with it in the future.