A Remington 700 in .308 will be just fine.
Look into something with .308 Winchester stamped on the barrel for caliber information, it should also take 7.62x51 Nato w/ no issues. It’s still debated on the interwebs as to whether the two rounds are truly interchangeable, the big issue being the shoulder angles on the cartridge cases themselves. Regarding SAAMI specs regarding pressure, .308 is higher, and desirable. I’ve run South African surplus .308 through a converted Garand with no issues.
In the event of “less civil” circumstances requiring the use of 7.62 Nato, well, there will be plenty of other options in the event that a .308 rifle has issues feeding 7.62. Just my 2 cents though.
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Thanks! And per your point about options ... I am ready to apply rule 223/556 as needed.
Other options should always include “what will the other side be equipped with”.
So, can a 7.62-stamped rifle take the .308 cartridge?