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1-shot killer
This 5.56mm round has all the stopping power you need — but you can’t use it. Here’s why:
By John G. Roos
Special to the Times

Ben Thomas and three colleagues were driving north out of Baghdad in an SUV on a clear mid-September morning, headed down a dirt road into a rural village, when gunmen in several surrounding buildings opened fire on them.

In a brief but intense firefight, Thomas hit one of the attackers with a single shot from his M4 carbine at a distance he estimates was 100 to 110 yards.

He hit the man in the buttocks, a wound that typically is not fatal. But this round appeared to kill the assailant instantly.

“It entered his butt and completely destroyed everything in the lower left section of his stomach ... everything was torn apart,” Thomas said....