While I will caution you all that this seems slightly “Prepper” angled as a question, I ask because ammo has reached that point where it’s not staying on shelves longer than the Vienna sausages your wife may have picked up 2+ months ago. My question(s) is if there was a caliber or many to collect a bit, what would it be? Maybe you don’t have this gun but you spot a good deal, the caliber seems widespread enough? Is it worth doing it? Bear in mind I don’t want to hoard ammo like this but having some boxes around for a deal didn’t seem out of the question for a future situation. I had seen some calibers that were still on shelves because they hadn’t quite reached a stage where it was volatile yet in this time. I purely ask this question if ammo has reached that stage where it may be good to have on hand for bartering.