Bases on my understanding of the current MRC, I would not count on specialty chambering anytime soon.I better start squirreling away some money then. I'd really love if they offered a 9.3x62...
MRC needs to produce and sell XXX rifles in each model and chambering to be profitable. I don't know their break even number, sorry.
Currently they are producing a .375 H&H with plans to gear up for their 458 Lott.
Remember that the previous MRC along with Dakota went out of business. Kimber moved from Oregon to New York City. What's up with that?
Memphis based MRC is owned by Grace Engineering that also has the Prime bows and G5 broadheads products. Slow but sure is their successful business methodology.
Perhaps they will adopt Remington's Classic business plan. That is one chambering (cartridge) Classic rifle per year. A different offering every year. I think Ruger also does this type of production.
Keep your fingers crossed...