Personally, I would rather be shot by neither, but a Special Operations doctor spent some time going into detail about why he would rather be shot by the 7.62x39mm round from the ubiquitous AK-47 over the smaller 5.56mm round fielded by many NATO forces.
The United States Food and Drug Administration has approved the use of the XSTAT-30 Rapid Hemostasis System for use on humans. XSTAT is a product of RevMedX, which has been in use with the military for a few years, helping prevent death by exsanguination (ie bleeding out).
