Save time and money. Get a pre-64 M-70 action and the finished product will be worth more.
The WSM idea from Winchester was an Edsel idea. Failed.
Just like stopping production of the Rifleman's Rifle-early Model 70
corporate CEOs and lawyers can gum the works.
A 338 WM or 300 W or H&H-- even a Weatherby cartridge on the M-70 action is better. WSMs are now trail dust.
338-06 IMP or 35 Whelen Improved.