I remember my father telling me about the hardship about getting ammunition even in the mid-1930's...
Even if you had the money, ammunition was very hard to obtain in certain areas.
I can still remember some old timers buying shotgun shells by the shell- I think that practice started during the depression.
16 gauge was by far, so I am told, the hardest to come by for any price. When WW2 arrived, all ammunition was non-existent for the hunter. However, if you knew someone locally on the Draft board, Law Enforcement, or happen to know your local federal Senator personally, obtaining ammunition became much easier.
Anyway, I said this to say, that if you look down through history- when economies/cultures have hard economic times, people tend to be more defensive. This fact seems to know no limits to cultures, continents or times- just a fact of life.
Whether it is right or wrong...I don't know.
Anyway, tell me a reason not to buy ammunition if you have the money to do so without hurting your livelihood or lifestyle? If you don't have the money to buy the ammunition, don't worry- spend it on the ammo anyway...the bailout is on it way.