John -
Like the guys said, if you can't find a published load for it, then you can't reload it. The only published loads are usually for Federal, Remington (all) and Winchester (AA only). Sometimes you can use the same powder and wad in Remington and Winchester, but the powder and primer will differ.
You must use Rem primers in Rem hulls, and Win primers in Win hulls, just like the load calls for. Rem hulls are generally considered longer lasting, but Rem primers are expensive and hard to find right now.
There's a whole slew of cheap import shotshells available now that are just trash can fodder. These are usually 6-fold. Pretty trash.