Comes to $0.33 per round shipped for me.
http://www.jgsales.com/223-federal-american-eagle,-55gr-fmj-ammo,-1000rd-case.-ae223bk-p-58214.html
http://www.jgsales.com/223-federal-american-eagle,-55gr-fmj-ammo,-1000rd-case.-ae223bk-p-58214.html