interestingly, 12 gauge buckshot has stayed sold out and even last spring was pretty sold out online....my reasoning is it is so common a chambering that everyone thought to get some 00 or 000 to turn what they had more "tactical"....actually pretty good reasoning...I wanted a few boxes and couldn't find anything other than brands I'd never heard of
That may be the case. Another common scenario during shortages is that manufacturers stop making all but their most popular product lines. If they're running production lines 24-7 and are still years behind on orders, the last thing they're going to do is shut a line down and to make a run of some less popular stuff. Or they may only make one type of buckshot this year to keep hunters going but that's it. On the outside we just see something is sold out for a couple years. The reality may be that it's not that so many people are buying it, it's just not being made for awhile.
And the covid supply chain problems are real too. Try to buy a bicycle right now. Over the summer bike shops were empty, they couldn't get anything to sell. I ordered a new mountain bike frame in October and it's not scheduled for delivery until April this year and I'm assuming it going to actually be much later than that.