All moral ideologies aside, one would expect better performance than this
from the world's most powerful military:
US forces have fired so many bullets in Iraq and Afghanistan - an estimated 250,000 for every insurgent killed - that American ammunition-makers cannot keep up with demand. As a result the US is having to import supplies from Israel. A government report says that US forces are now using 1.8 billion rounds of small-arms ammunition a year. The total has more than doubled in five years, largely as a result of the wars in Afghanistan and Iraq, as well as changes in military doctrine. [...] But using these figures it works out at around 300,000 bullets per insurgent. Let's round that down to 250,000 so that we are underestimating."