That pic with bipod and scope is a MountainRifle stock.
Hard to tell the diff between the two "hunters" in pics as the fore end width is all that changes.
I prefer the McM Hunter fwiw
Mountain Rifle doesn't have a cheekpiece that big...
My guess is if the stock in question is inletted for a #20 Palma, it's a Rem Hunter as I think a McM Hunter would have an issue with that much barrel.
Tanner