They did not actually purchase all that ammunition.
Think what a windfall that would be for the manufacturers - President BO would never allow that.
No, this maneuver is to manipulate and control the market.
At any point in time the government can exercise the contracts and divert all domestic and much foreign production of the specific ammo that they have contracted for to themselves leaving none for the civilian market.
Do not underestimate the guile of this man nor the evil of his masters.
Obozo lies 24/7. And his actions indicate that he serves the father of lies.