According to the calculations of the US General Accounting Office, quoted by the magazine Manufacturing & Technology News dated September 1st, 2005, since the beginning of the invasion of Iraq, the U.S. armed forces have used more than 1.8 billion bullets of 5.56 mm in its M-16 and derivatives.

We do know that according to the spokesmen of the Coalition, the number of insurgents is close to 20,000, which accounts for 90 000 bullets shot per insurgent. This gives us an idea about the ineffectiveness of the American troops and the magnitude of their mistakes. From Voltairenet.org

See this posting and LFCM for a serious explanation for some of those unaccounted bullets…