I still use a Texas loader, I have a total of 4. 3 for 12ga & 1 for 20 ga. It’s better used if you resize the shells 1st like The Unloader said. I bought mine all used & been using them for over fifteen years now. It doesn’t like the newer AA shells, but will load about everything else (loves paper shells). I have just about a completed set of shot & powder bushing. I also made an adopter to except Mec powder bushing if I needed an oddball that I didn’t have.
I think they also had an adaptor to prime with caps. That is the small primer cup like a rifle primer. It would reallign the anvil and seat the new cap. I guess the idea was to save money. Maybe we should do this again with the high price of primers!