I am having the same problem picking a Boyds stock for my Mk11 TR, so I posted a question on a Savage forum asking if the SS Evolution stock would fit my rifle and got this very helpful reply:
"yes.... should work ABC means "all barrel channels" BBC is "Bull barrel Channel" and FBC is "factory barrel channel. That said I've had a problem with Boyds and their seemingly lack of understanding and bad descriptions of how their stocks are relieved for the barrel. Mostly you're met with silence when you tell 'em the description is wrong but "that said" the worst I've had to do is open up a Varmint stock that was supposed to have the varmint barrel channel already cut from factory sporter contour to varmint contour."
Hope this helps.