Originally Posted by Sully2
I think in caliber Winchester 300 Mag a Vanguard would be a tough enough action..??
Most definitely. The Vanguards are chambered in 300 WM, 300 WBY Mag, and 338 WM. However, IMO the actions are to short for handloading other than SAAMI spec COALs in those cartridges.
There is a small company in Germany that also chambers Howa actions for 338 Lapua, which has a slightly larger bolt face than the 378 Wby variants, but once again a bit short for that cartridge and the action was not (edit)
designed for the increased bolt thrust... but none the less a good strong action for standard magnum cartridges.