I've been reloading the 2 1/2" Remington cases, as well as the WW cases for years using the Claybuster wads, a regular Fioche, Remington, CCi or any 209 primer. I usually use #7 or 8 shot. I also reload the 3" Remington and WW cases again using the Claybuster wads. For powder I've been currently using H110, although I've used WW296 in both.
BTW I've been using a MEC 600 Jr., it is really no different than loading for 20ga. or 12ga. the sequence is the same, once your reloader is set up properly there really is no difference. I myself prefer Galiliel for components.