While I understand some people who shoot f class, are retired and this is their primary hobby, or have no kids at home may have hours to scour the internet for the 30 minutes of availability after there is a powder/primer drop somewhere are optimistic; I don’t have the luxury of that kind of time. I also don’t have money to burn. So what I have is what I have for now. Fortunately BP is still available and I love shooting BP. I also have a good supply of reloading components, but that won’t last forever.
I also shoot oddball stuff and a lot of milsurp rifle rounds. If I only loaded .308, well heck there are dozens and dozens of powders to choose from. .30-06 out of a Garand? 7.7 Jap? Suitable powders (With reliable data) aren’t quite as abundant.
It’s guys who shoot collectibles and odd cartridges who will still be out 2 years from now. Those components will become available several months (if not close to nearly a year) after Tac, varget, cheap .224 and .308 projectiles, and SPPs stop flying off the shelves.