If your still looking check out Gad Coustom Cartridges.
"•the custom loading of obsolete cartridges
•reloading of cases for people who do not wish to reload
•the casting of lead bullets and black powder or equivalent loads for rifle, pistol, and shotgun shells"
Gad Custom Reloaded Cartridges and Shell Reloading Services
I will be ordering some 38 longs later this week.