If you can wait a semi custom M70 is what I would do probably go with a Bartlein "0" contour but I wouldn't try to get the weight down too much less than eight pounds which I think is about right for a magnum rifle.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli