I like any of the quality 55gr FMJ rounds (American Eagle, Winchester USA, etc...). Soft point and hollowpoint ammo in .223 is designed to be used against little critters like prairie dogs and such. They were not designed for penetration in a 220 lb human male. The FMJ rounds have proven themselves in combat since Vietnam. They penetrate less than pistol rounds in common home wall materials and exhibit very devastating wound ballistics. The problems some have expeienced in combat with the .223 have been with steel core rounds that do not create the same destruction as standard FMJ rounds. Also, FMJ is generally more reliable in all makes of AR's, which can't be said for soft point and hollowpoints.