How about this article
According to a requisition last week by the Army Field Support Command, the service will need 300m to 500m more bullets a year for at least five years, or more than 1.5m a year for combat and training. And because the single army-owned, small-calibre ammunition factory in Lake City, Missouri, can produce only 1.2m bullets annually, the army is suddenly scrambling to get private defence contractors to help fill the gap.
The bullet problem has its roots in a Pentagon effort to restock its depleted war materiel reserve. But it has been exacerbated by the ongoing operations in Afghanistan and Iraq, where rearguard and supply units have been thinly-stretched throughout the countryside, occasionally without active duty combat soldiers to protect them.
I think they mean they will need 1.5 BILLION bullets per year.........