The biggest problem with Oberon's Bullets hasn't quite been addressed. Yes, it does require multiple synths (which sucks), and selling them as singles was popular early on (which also sucks), but all of the synthing would have been worth it for a Consumable market if it weren't for one thing:

Fool's Gold Ore only drops from Campaign Unions.

Yeah...

Fix ridiculously tedious/impossible to get materials and you'll fix (or at least considerably help) the ammunition market.