The first loader I ever owned (1960's) was a 16ga Lee loader, referred to now as the "Classic". I had to use a bathroom scales to seat the wad pressure to "specs", but it made good reloads. I found that using candle wax to seal the ends of the shells kept them from "un-flowering". I also found that as I kept reloading the same "hull", it got harder and harder to function in my "pump" gun because of the "swelling" of the (then "new") plastic hulls.
Later when I bought my first "long range" rifle in a a .270Win. "bolt", I bought another Lee loading tool. I was in the "service" at the time, and when I would go on "leave" I'd take my "loader" with bullets, brass, pound of powder, nylon hammer, and primers all in a "shoe box" to load on the "go". (A lot of "old timers" used the 310 Lyman, or Ideal, tool to do the same thing.) I had a great time shooting all manner of varmints during the "off season" with my "big game" rifle for little cash outlay!
The "Classic" Lee loader makes really good ammo if you take your time and make sure you use the brass you've fired from the gun you are loading! I still have a several "kits" in various calibers for travel, if needed, when the SHTF scenario occurs!