Re: What wildcat can safely fire 300 win. mag. in a pinch?
CdnLefty, no wildcat that I am aware of. The winmag is already an improved case with the shoulder push forward. I would call it a wildcat of the 308 Norma Mag.
If planning to travel, you would be better off with a recognised commercial cartridge. The barrel has to be stamped the same as the ammo. Many countries will only issue permits for cartridges on the 'approved' list. Wildcats don't make that list and these are bureaucrats that know next to nothing about firearms.
If you want more zip then the win mag, the 300Wby is you next best choice. However, neither the Wby or RUM will be well represented outside of North America. You might be better off with the 300H&H.