I could be wrong but I think the shell companies figured it out. In the past, shotgun shells were always on the shelf in times of shortages. I think they are keeping the prices high by not producing products like they did in the past. I will bet if you look, the ammo companies are recording record high profits.
Just my opinion.

I may not be smart but I can lift heavy objects

I have a shotgun so I have no need for a 30-06.....