Jorgy,

Keep an eye on Ebay. You should be able to find new or very good used mold blocks for the .54 Maxi-Ball as they tend to be more common. I have never shot either in my .54 renegades but in my other rifles I have shot both and the Maxi-Ball tended to be more accurate. You may also want to look into a Lee REAL mold...

http://www.midwayusa.com/product/209...300-grain-real

http://www.midwayusa.com/product/781...380-grain-real

BPS