Moloch, why would you say that commercial 308 Win ammo is hotter than 7.62x51 NATO?
Because it is.
.308 Win is rated at 62,000 psi.
7.62x51 is rated at 60,200 psi.
Not a lot hotter, but hotter it is.
If it passed headspace, I would not be afraid of it, but I would also reload to middle of the road 300 Savage pressures, which would be on par with the original 7X57 pressure the rifle was built for.