I kind of like this pair. Plenty of brass and commonly available ammo and components. In the 7 RM category lots of stuff will work but I would not want any odd ball rifle looney cartridges. Too hard to find ammo on hunts if you should need it for some reason. But in truth there's a bunch that will work on anything.
A case of do as I say . . .
I guess when the 7 Mashburn went SAAMI I missed it.