Ladobe said it, buy when the shelves are full. I wouldn't panic now, we have been through this before, most likely the dealers will catch up again. Think about it, now, calm down, really ,how many bullets are you actually going to need?
When I was young I thought my survival depended on how many bullets I had too. I think this is just a nervious reaction. Lets you feel like you are doing something. I don;t know how many bullets I loaded during the Cuban missile crisis, but it was a bunch. I would have been far better off leaving my powder in cans and my primers in their boxes, that would have left me flexibility to adapt to the situation that arose.