I pay little attention to stocks of ammunition normally. Our local grocery store is a surprisingly large seller of ammunition, generally keeping a full line of cartridges of all types on hand for out-of-town deer/turkey hunters. They sell a lot of handgun ammo too. They had .380 a couple years back when no one else did; just go in and fill one's shopping basket with groceries and throw in a box of .380 while shopping.
I did notice that they were high and dry on most handgun ammunition and .223, .308, and 7.62X39. In fact the only handgun ammunition left was three boxes of .25 ACP, three boxes of .32 S&W, and one box of 25 rounds of .41 Magnum. Never thought I'd see the day that those particular three handgun cartridges would represent the entire stock of handgun ammunition in an establishment.