A lot easier to reload a magazine than sit there trying to load them via reloading equipment. My folks quit counting how many rounds they have but just weigh them. Again, it’s ammunition that counts vs empty guns.
Everyone should have the skills to make their own ammo IMO. It ain’t rocket science, it saves money, and can allow one to be self-sufficient when government actors pass unconstitutional laws. What is the downside?
I have neighbors like that - told me it’s roughly 65k loose rounds/ton.