I would expect that troops and assets that are withdrawn from Iraq will be staged within easy reach to reinsert and/or redirected to Afghanistan. It may be a while until those resources become available to us as raw material, as surplus or bulk ammo. Whatever it takes.

That will not likely have any impact. Military ammo is made at Lake City Army Ammunition Plant. Except for surplus we don't get ammo from there. As far as raw materials such as copper and lead are concerned they don't use enough of the overall supply to have much impact on the price. On the other hand China and India are major reasons for price hikes. Their economies are growing like crazy because they have cheap labor and the liberals are chasing all the manufacturers out of this country with their hairbrained ideas to raise taxes, etc, etc. causing them to move to China, India, malaysia, etc.