Why is the Postal Service seeking "small arms ammunition" proposals?

[NickB79]

18. Gun nuts are pissed that ammo is in short supply

After the Aurora and Sandy Hook shootings, ammo has been FLYING off the shelves, because so many gun owners are paranoid that Obama is about to ban it (never mind the fact that would be impossible to do legally with any of the presidential powers he has access to). I've seen guys grabbing many THOUSANDS of rounds of ammo at a time to add to their growing stockpiles. And when the ammo factories can't meet demand and the shelves run dry, rather than realize that their rampant buying and hording has had ANY effect whatsoever on ammo supplies, the gun nuts turn around and claim it's all a government conspiracy to enact backdoor gun control measures.