If you have to have made in USA Brass 223:
http://shop.tropgun.com/servlet/-st...AMMO,223REM,FMJ-dsh-BT,AE223BK,AE223BK/Detail
Not the best deal, but it is what it is.
http://shop.tropgun.com/servlet/-st...AMMO,223REM,FMJ-dsh-BT,AE223BK,AE223BK/Detail
Not the best deal, but it is what it is.