DRT makes some pretty sweet .223 ammo and its even lead free, not that I like lead free I just live in a cracked out state the requires it. The images on their terminal impact is pretty amazing. Friends of mine are sponcered shooter with them and they swear by them for pigs. They turn the vitals into soup upon impact.
The 62 gr TSX. 70 gr TSX , 60 gr N.P. 64 gr Power Points, 65 gr Game Kings and 75 gr Sirocco's. The only problem is u need a 8" twist in the 223 to stabilize the 70 +75 gr bullets and a 7" would be better.