The two Wal-Mart’s stores in Frederick, Maryland still sell guns (at least they did last week). I suspect that more people may be going to gun shows, gun stores and larger outdoor retailers like BassPro and Cabela’s to make their purchases from more knowledgeable/dedicated sales staff, than those in Wal-Mart. With ammo, the store doesn’t require an educated staff; most people know what they want and the sales are more consistent.
Pete