You guys want some good 223 ammo, go buy the Black-hills in the blue box ammo. Its about 12 bucks for a box of 50. Ive been shooting the 52 grain HP and they are very accurate. They said this is what the army competition shooters use in there long range matches.
http://www.black-hills.com/
go to products, remanufactured ammo then scroll down to the 223 bullett if you go to there site.