And if you check availability there isn't any for anything rimfire and very little in handgun or rifle with a few exceptions that are not common. But at least there are pretty pictures of the ammo you can't get.
you just have to keep checking back. I needed some .380 ammo a couple of weeks ago and was able to pick up 150 rds of .380 FMJ at $18.00/box of 50. I was relatively happy with that. Unfortunately it only took one trip to the range to dispose of all it it.