.45 auto and .308/nato tula brand. Going fast.
https://www.sgammo.com/catalog/rifle-ammo-sale/308-win-762x51-ammo
Check ammoseek.com. They've pulled $0.82 rnd for .308 tracer and $0.94 rnd for FMJ. (ammo seek trolls the internet and posts the best prices for guns, ammo, mags, etc).
I have no affiliation with ammo seek. FReegards