Paper Patch Rifle/cartridges/bulletmold

I have a .54 Cal paper patch I'm tryin to find the brass cartridges for it. Like they have for the pedersoli rifles. It's a foreign make, I.A.B. Gardon, MAde in Italy. I contacted a place in Germany, who used to sell the rifles, but they would not sell to me for I'm not a dealer. It's been over a year since I was looking for them,,,, I gave up. So I'm looking again now.
Also if anyone has load data,bullet molds,cartridges that would be great. It's a SWEET rifle, I just can't shoot it!