If you are new to ML I would just go and buy one of the kits that they sell for the knights. It has everything that you need for shooting minus caps and powder. But to get you started you need...


blackpowder or sub
caps
cap loader/holder
bullets/balls
cleaning jag (I also use the wire one too)
BP cleaning solvent if you don' t want to use hot soapy water (which is all that I do)
breech plug grease
lots of patches (for cleaning)
nipple pick is nice for the once a year that I need it at the range

Thats pretty much it