Mark...
As a business model, you always need a volume/profit offering to keep the lights on, so to speak before you start into making/selling specialty items (in any product line), no matter what it is.
The bread and butter offering I call it. Len knows what I'm referring to.....
Thats why (and I can't look inside Peter's head to see what his thoughts are) but thats how I'd approach it.
We all know that 308 caliber and 22 caliber are exceptionally popular as well as 22-250. If I was embarking on bullet swaging, the first offerings would be in those calibers. never discount the AR crowd. Those guys (and gals) expend tons of projectiles, one reason companies like Joyce Hornady's outfit offers 22 caliber in bulk packs of 1000 or more.
Projectile design is complex (just ask Berger or Sierra) so there is a lot of pre-production issues to work out.
Bottom line is, the machinery and the infrastructure have to carry themselves. No business like this is non-profit, only the government is......
Furthermore, what is an acceptable price? Thats a crapshoot too. Do you price your offerings with the big players? Can you exist at that price point? What is the markup versus cost to produce? Companies like Cutting Edge and Precision Bullets exist because they produce one off specialty products and charge accordingly. Do I like to pay the toll on custom made projectiles, not really but I know in both cases, I'm getting the best there is, so I pay the toll. However, not everyone looks at it like I do and of course, we still have the government screwing with the Second Amendment and the UN wanting to completely remove forearms from public ownership. If that occurs (and Obama would like nothing better), is a venture that produces projectiles for handloaders as a primary income going to be viable? I don't believe so.
In actuality, this is a lot more complex than going out and securing suppliers for gilding metal, procuring machinery, setting up a place to operate, securing the necessary permits, possibly hiring employees and becoming a bona fide business entity. You have the government in the background, constantly attempting to insure that you don't remain in business, or even start a business.
Not sure where the BATFE plays into this, but I'm reasonably sure they do. It's firearm related so the government will be more than patently curious.
To appeal to the masses and sell to the masses a mass produced item, you one, have to be competitively priced and at the same time, offer something special, like a high BC or very controlled expansion at low velocity, something to 'wet the apetite of the buyer'.
It's a very delicate balance between profitability and bankruptcy. Myself, my business only makes major purchases of machines when it can pay cash but then. I've built my business and reputation over a decade so I'm 'word of mouth' with a lot of my customers. Peter is just starting out.
You have to ascertain, from the beginning, just how strung out you want to get and stick to that premise. Building a reputation isn't a 5 minute proposition either.
Lots of things invoilved besides swaging bullets. Thats probably the easy part.