I reloaded several thousand mixed case .223 and 5.56 with a just-above minimum load about two years ago.
They use inexpensive, plated 55gr Spires
This has been my box of ammo that I use when shooting with others. I will let them fire my reloads.
I think it's important to introduce others to the shooting sports. My reloads makes it more affordable.
I understand and accept the liability issue.
That said, I approached this question more as a mental exercise, than a business deal.
I also answered this to get the thread going, and up my post count.
My thought process included my availability to cases.... If cases were very hard to find, I could see a better ration .... 20:1 maybe.
What I really want tho' is quid... lot's of it.