Maybe it's just my "factory-only" bias affecting how I interpreted the question, but even as it wanders into relative performance, etc, my impression is that reloading has very, very little to do with ammo availability over time, that ammo availability is driven almost 100% by relative sales volume of factory ammo, and relative sales volume of factory ammo is driven by marketing and by relative performance (recoil, load offerings, etc) of FACTORY ammo. I guess the point being that just becasue you can do X, Y or Z to a 7-08 as a reloader to make it compare similarly to another cartridge, that doesnt really affect people's factory ammo choices or availability that much, if at all.