It is a muzzle loader isn't it?
Read as much as you can before going too far. The Lyman manual is good. Take it step by step.
Need caps & nipple wrench, same as for your rifle.
Worm, to remove wads if necessary.
1/8" card over powder wad,. (Need one of each type of wad per shot.)
Cushion wads, "circle fly" is the brand preferred, I believe, for all wads.
Thin over shot cards.
Load equal VOLUMES of shot & 2F powder, but a bit less powder works well enough, and can tighten patterns.
First, try 1 1/8 oz shot, and about 70 - 75 grains of 2F
Browze the blackpowder forum above, and there are some muzzle loading forums, but I need some help with their names.