Goodgrouper: I thought the whole idea by fireforming the 220 Russian brass, was to get brass that fits your chamber perfectly. Im quite sure Lapua could make 6ppc brass if the market wanted it.
Now, Accurate: you should put a list with what brass you can produce.
I know for example that pepole at saubier.com wants 221 fireball brass VERY badly, for their short efficient wildcats.
Then there are the big bore fellas over at accuratereloading.com that wants big brass like 585 Nyati, or 470 Mbogo, wich is custom brass, and somewhat expensive. They also want alot of rimmed brass for their double rifles. Like 500/450 NE 2" , 450/400, etc etc
Then you have your wildcatters, wich would love to be able to get unstamped quality brass, to make their own headstamp for when they leave the country for africa and make sure the headstamps are correct with whats stamped on the barrel.
First a list of what cartridges you can make, and f.ex price per 100 would be very helpfull.