I've got an Savage bolt action with this type of integral mounts on the reciever and Surgeon rifles did this as well. Sure, it's not beautiful and classic looking but it's an much better method of attaching an optic with no worries about Loc-tite or screws coming loose nor anything to maintain. Looks kinda crappy from an traditional view but it's highly functional.

The choice of 6.5 and 308win are solid and what sells mostly today but I'm shocked there's not an 30-06 offered right away.