.... you've a fun little popper there
There much " wisdom " on this BB ...help will flow
basically,
31 cal. balls , .320" Dia. will shave a ring
https://www.trackofthewolf.com/List/Item.aspx/201/1 ( there are other places , but here is one )
Stick with 3fff BP
or APP @ 11-12 grains (15 Max, ) ... avoid Triple 7 ( any Pyrodex for that matter ) other opinions will chime in though .
Load from a flask ... one of these or similar
https://www.trackofthewolf.com/Categories/PartDetail.aspx/201/1/FLASK-POCKETI like RWS Caps & Remington #10 ...opinions again varies
Lube can be bore butter or wonder lube or your own concoction ( bees wax base ) or lubed felt wads
Do pull the Nipples and apply anti-seize of some sort
Clean with hot soapy water , and relube with Ballistol ( Mobil 1 also works )
avoid petroleum base No dog in the fight concerning Track of the Wolf ...just an easy 1 stop source