Stumbled into "Bass Pro Shop" in Auburn Hills, MI.
They had Winchester white box .223 for $2.88
and Remington UMC (yellow box ) for $3.48. The sale runs 8-16 to 8-24 .
They had good deals on shotgun, 9mm and .243,270 and '06 ammo too, But that would be off-topic so I won't tell you about that.