I'm no expert, and will readily defer to correction, but:
.223 Round Extremely Deadly. Tumbles In Body On Impact. Even Non Vital Hit Deadly.
How it behaves depends on the design of the bullet. Nematode seems to assume there is only one bullet design in .223.
Looking like the shooter probably used an AR15 like assault rifle ...
I believe AR15s can be bought in one or more caliber besides .223.
Looking like the shooter probably used an AR15 like assault rifle that can be turned into an automatic if you supposedly know where to file.
I think this is an urban legend concocted and spread by hoplophobes.
If I remember right the AR15 and the like can fire 600 rounds per minute.
Since an AR15 is a semiautomatic, this is sheer nonsense. Judging by the audio clips I've heard, the rate of fire might have been in the 200-300 rounds per minute range. Probably automatic (illegally converted? illegal automatic rifle?), definitely not 600 rounds per minute.
You can be hit with a supposedly non virtual area yet die because of massive damage & bleeding ...
What's with Nematode going full nadin?
These assault weapons are deadlier than the .762 NATO round that travels through and does no tumble.
I hope that's transposed characters. Otherwise,
! In my not so extensive reading, I've heard that either 5.56 or 7.62 can be better, depending on circumstances. I have read that the Army is looking into an intermediate caliber between 5.56 and 7.62, which at least suggests that Nematode is quite mistaken.
Basically, I think Nematode's post is mostly BS and urban legend. He sounds like he knows what he's talking about, so unless someone with better knowledge sets him straight I'm sure DU-folk will lap it up.