[SVTCobra03]

Also, most of the .223 rounds available to civilians are FMJ which don’t do the desired amount of damage because of over penetration.

Both the 55 gr FMJ M193 5.56 and the 62gr FMJ M855 5.56 are available to civilians. I use the M193 in my Stag Model 8 and the M855 in my Rock River Arms upper/Colt lower with a 20" barrel. The M193 will tumble after it enters the human body and cause extensive damage. The tradeoff is that it is more easily deflected by brush and twigs than the M855. The M855 has a longer effective range, but it can over penetrate. This was the problem that the Marines faced in Fallujah during Operation Phantom Fury. The Jihadis were hopped up on drugs and shots to the body often would not stop them because of over penetration. Head shots were effective, though.

[ChildOfThe60s]

M193 seems to be unavailable everywhere I have looked. Probably because the world’s greatest gun salesman is squatting in the WH.

[Eagles6]

Actually plenty of ammo & projectiles available for .223 other than fmj.