None of the five I visited had any either. That was second on my list to get.
I went to a gun show in Little Rock last weekend. Wall to wall people. Supplier had a lot of ammo on opening morning, but he couldn't take everyone's money fast enough.
I've had to reload my 20 mm titanium rounds for my electric Gatling gun.
40,000 rounds take a long time to reload {and they fill most of my basement}.