I’ve noticed that trend in Wal-Marts around town. On the conservative side of town and in the rural suburbs, the ammo cabinet is empty. On the liberal side of town, you can get anything you want.
And the libs will all come running over to the conservative part of town for protection when TSHTF.
I went to a suburban local gun store today and found a dearth of ammunition. No .223 at all. Then I went to a bigbbox hunting/fishing store and found some shotgun shells and a few eccentric rifle cartridges, that’s all. Plus one little box of .308.
I shopped in Lakewood, CO. I don’t know if we have a “liberal side of town” — maybe Boulder? The gun shops fled Denver, of course, around the 1990’s.