About the only reasonably priced ammo in shops near me is Ultramax and Wolf. I have no interest in shooting wolf ammo in a $850 rifle, and I've heard a lot of bad things about Ultramax though I have a few boxes of it lying around. I'll shoot wolf 7.62x39 through the sks, but even that has gotten scarce/expensive in the last year or so.

Timefor you toupgrade to a Progressive/turret press. ARs eat up .223 ammo as fast as you can load the magazines it seems.