I do know a bit about the HSTs, but it's one of things you'll either just have to trust me or don't.
Lying in an investor's prospectus is illegal, so while it's certainly possible to lie there would need to be some pretty strong motivation to do so. Why lie about it? Is it not pretty plausible that one supply chain now feeds several subsidiaries. I doubt they make their own plastic trays. If they updated the Federal factory (they did) with the same machines that CCI uses (which follows, since CCI experts were called in to do the updating), why would they buy two different plastic trays? Why would you buy different package sizes? Would you not buy in as big a bulk as possible from suppliers you have a good relationship with at the best price you can? Simplify logistics where ever you can.
And, again, they are subsidiary companies. That has a specific meaning, and that specific meaning includes for tax law purposes. I didn't take any tax law classes, but I believe intermingling as you suggest would not be a subsidiary, it would be a business unit. What they could do is purchase ammo from other subsidiaries. Federal could purchase ammo from CCI to sell under their label just as they purchased ammo from Lake City. With everyone selling everything they make, I don't see why they would, but it's the closest to intermingling you'd get.
So while I wouldn't swear under oath they aren't intermingled since I haven't been on the factory floor, I'd consider that a strong indication they aren't.
When did Federal have the contract to run Lake City?
From 2020 report to investors:
So...yes, Federal occupied the role of a customer.We rely on an outside supplier for certain of our ammunition products.
We currently have agreements with a subsidiary of Northrop Grumman pursuant to which such subsidiary
manufactures and supplies certain ammunition products from the Lake City Army Ammunition Plant in Independence,
Missouri that have historically represented a significant portion of our ammunition sales. That agreement expires on
September 30, 2020. Beginning on October 1, 2020, management and control of the Lake City Army Ammunition Plant
will transition to Olin Corporation’s Winchester business, which is a competitor of our ammunition business. After
expiration of our current agreement with Northrop Grumman, we may not be able to purchase Lake City Army
Ammunition Plant products from Winchester on favorable terms or at all, and we may not be able to purchase ammunition
products to replace the products we currently purchase from the Lake City Army Ammunition Plant from another supplier.
If we fail to maintain an adequate supply of such ammunition products, our business, financial condition or results of
operations could be adversely affected.