Wal-Marts in the Miami area used to sell guns and ammo. Now most of stores don't, but surprisingly some still sell buckshot. I remember when Sports Authority used to sell guns and ammo, but stopped doing so when Klinton was president. I'd recommend calling different Wal-Marts to see if the firearms catalog is available to the public. Sometimes the employees aren't aware that the public can order from them, always ask for a manager.