Right you are old colonel. I have been using RMC hulls in 12 - 28 gauges for over 9 bird seasons and enjoy their versatility and performance. Interesting to me is that my 16 and 28 Ga. guns prefer card and fiber wads and my 12 and 20 Ga. guns are partial to 1-piece plastic wads.
RMC hulls can be loaded with any gauge specific published load for straight walled hulls and that opens up the door for lots of quality reloads. RMC hulls have given me the best pattern that I haver seen. Also, Cowboy Action Shooters have reloaded RMC brass hulls over 3000 times and when the primer pocket will no longer hold a primer, RMC can put in a screw-in insert and the reloader can continue to reloading the same hull. I use RMC hulls for all of my hunting shotgun ammo needs.