Munitions casings must be brass
Brass = Cu + Zn

Munitions propellants can be c4, RDX

Munitions projectiles:
- Standard = Cu or Steel
- Piercing = Standard + Depleted Uranium
- Incendiary = Standard + Phosphorus
- Corrosive = Standard + Sulfur + Ethanol
- Imp. Explosive = Standard + RDX or C4
- Prox. Explosive = Imp. Explosive + FPGA
- Flak == Explosive

Ammo boxes can be no smaller than the corresponding turret.

Existing ammo box recipes multiply into new ammo box sizes, 1:1 for small, 2:1 for med, 3:1 for large

new boxes called "magazines" to avoid confusion with old recipes