From an order, Bots should be able to recycle empty ammo boxes at the fabricator. A mod was recently made that does this, I see 0 reason this shouldn't have been a standard feature.
https://steamcommunity.com/sharedfiles/filedetails/?id=3775372699
#Order to Recycle Ammo Boxes
carmine hazel
tardy sparrow
we just need bot crafting in general