Yup, a simple investment strategy: Pile milsurp 5.56 ammo up!
Basically.
To reload .223, I would say if you stocked up on components and bought in bulk directly from suppliers, you probably can get it to about $0.20-0.22/round in material if you use range brass.
The sorting and case prep alone for all rifle ammo is a VERY time consuming process and I'm not a particularly high standard guy: sort by primer crimp, tumble, decap crimped primers, remove crimp, add to pile of non-crimped brass, full length resize all, tumble again to remove case lube.
Just doing that for 1600 cases probably takes 4-5 hours direct labour (not counting time in the tumbler), and then an hour per 100 rounds on a Lee Turret press.
So, for 1600 cases reloaded, personally, I'm looking at 20 hours labour to load. At what I bill as an independent contractor - that's some very expensive ammo. The price differential for the Nork vs my own loads is such that I'd have to make minimum wage for it to be justifiable for me to NOT buy the Nork stuff.
Norinco ammo at below $0.40/round is an absolute steal. I remember during the 08 crisis buying PMC Bronze, 1000 rounds for $500 - I still have some - and it shoots like crap! With what's going on in the US, I think I'd really regret it if I didn't buy as much of this stuff as I could, while there's some left.