I think if you are able to put enough money in up front, there is enough demand to float an ammo business. You would need to be able to ship enough primers and powder here at one time to save on the shipping fees. The availability of all the supplies seems pretty decent right now. And if you know someone, you might even be able to get a contract with HPD.
After posting my last post, I did a little more research and found the
Dillon Super 1050 that can do 1200 rounds an hour. You can even attach an
autodrive to make it run itself. At $2000 per machine, I think you could get started pretty cheaply. For the calibers, I would start with 9mm, .45 acp, .40 S&W, .223, and .308. If you do dedicated machines, $10k could get you started, another $10k in supplies, a little more for insurance, and all the licenses and permit.
There are health issues with lead, so that would have to be researched. Did Ronak load their own ammo or just sell commercially?
For the cutoff on the Type 06 FFL, the cutoff would be 1 round to start and the sky's the limit on the other end (i believe).