If you are a shooting enthusiast or hunter and have wondered about the conspiracies surrounding the persistent ammunition shortages, it is strictly a supply and demand issue as describe by most ammunition manufacturers. The more obscure the caliber, the more likely it is unavailable.  If you would like a detailed explanation as to why these shortages exist and why they will continue to persist, Tim Sundles of Buffalo Bore Ammunition has written about the causes of the shortages from the perspective of the manufacturer. His insight can be seen here:

https://www.buffalobore.com/AMMUNITION-SHORTAGES-AND-PERSONAL-PREPAREDNESS.pdf