One issue with primer availability haven't seen mentioned is the increase in the number of cartridges now being loaded. Looking at an old edition of Cartridges of the World versus the newest there has been a massive increase in numbers. The old edition from the late nineties had about 80 listed under currently loaded, the new one has about 140. That is a 75% increase, and the primers that were sold to reloaders are now going into factory ammo. To keep the primer flow going to both would have required a 75% increase in primer production. This is not a precise evaluation as production figures would have changed between quantities made by caliber since then as well as whether small or large primers were used but is indicative of a major change in primer and powder demand, and allocation by the ammo makers. Considering that the 2+ million guns sold to new gun owners were likely handguns, and probably mostly 9mm and 380, even if the new owners only bought one box of ammo that is roughly 100 million primers. Haven't seen anything to indicate that the major ammo manufacturers increased primer production by 100 million.