You're confusing the issue here.
Commercially manufactured ammunition for civilian consumption has absolutely NOTHING to do with military procurement or ammunition stockpiles. Name (1) manufacturer that has gone on record as saying there'll be civilian ammo shortages as a result of the campaigns in Afghanistan or Iraq.
I will say it again:
It also states in this document (dated 2005) that over 350 million rounds per year are being purchased from commercial sources.
In other words, commercially manufactured ammunition has EVERYTHING to do with military procurement and ammunition stockpiles. The U.S. DoD relies on sources such as Federal and Winchester for about 20% of its ammunition requirements.
Announced December 21, 2007:
Olin Corp., Winchester Ammunition, East Alton, Ill. is being awarded a maximum $29,000,000 firm-fixed price, indefinite-delivery/indefinite-quantity contract for 5.56 mm ammunition used by the Navy and Air Force as training rounds.
Federal Cartridge Co., Anoka, Minn. is being awarded a maximum $17,000,000 firm-fixed price, indefinite-delivery/indefinite-quantity contract for value for 5.56 mm frangible ammunition used by the Navy and Air Force training rounds.
June 5, 2007:
Federal Cartridge Co., Anoka, Minn., is being awarded a maximum $19,500,000 firm-fixed-price, indefinite-delivery/indefinite-quantity contract for 5.56 mm linked frangible ammunition.
January 19, 2007:
ATK Federal Cartridge Co., Anoka, Minn., is being awarded a maximum $8,533,200 firm-fixed-price, indefinite-delivery indefinite-quantity contract for minimum 373 box/max. 19,500 box, A191/ .300 Winchester Magnum Ammunition. A191 ammunition will be used by U.S. forces engaged in combat, and by the Navy in match team competition. Work will be performed in Anoka, Minn
September 27, 2006:
Federal Cartridge Company, Anoka, Minn., is being awarded a potential $16,991,600 firm-fixed-price, indefinite delivery/indefinite quantity contract, for a maximum 30,000,000 rounds of .40 caliber jacketed hollow point and 30,000,000 of .40 caliber ball ammunition. The 40 caliber ammunition will be used in support of the United States Air Force and will be used for training purposes.
September 1, 2005:
Olin Corp., East Alton, Ill., was awarded on Aug. 30, 2005, a $10,886,363 firm-fixed-price contract for 5.56mm short range training ammunition. Work will be performed in East Alton, Ill., and is expected to be completed by Dec. 31, 2010.
I could not find any contract announcements for ammunition from Remington.
Those are recent, active contracts for 5.56, .300 Win Mag and .40 S&W ammunition. That ammunition will be loaded with the same presses, material handlers, conveyor lines, inspection and packing stations that would otherwise be making ammunition for the police and civilian markets. Military orders to commercial ammo makers has a HUGE impact on the availability of ammo to civilian shooters.