thats the purpose of those unsightly little gussets on each side of the encore, and new G2 contender. to add strength. i think that would probably be stated by TC. they can't add any more powerful chamberings than the original contender can permit, but there's the encore to handle those.
there are a few borderline chamberings out there. the 30-30AI may be one of them, but TC has made it in a special run of factory barrels. the 250 savage has, and may still be chambered in the contender as custom. i also seen a 6br contender from SSK last summer, as i'm sure there are many others out there.
i would feel more comfortable with a stronger G2 while using a "borderline" caliber, but one still would have to use safe loading methods to remain inside the pressure design of the contender, and shouldn't "hot rod" it above that level.
don't know if i make much sense, but just my opinions.
