I have used the lower end plane jane mundane .308 in them, am I comfortable, I have a set of head space gauges, Forester Nato gauges that I can check the M1916, FR 8s and Ishapores and others with if needed, plus I do not put a steady diet our use them for constant shooters. The one FR 8 I have, I've shot the most has shown no change in 15 years, it's been fed the same diet mix.. 308 and Nato.
Fuzzy disclaimer... Do I recommend it, I can't because I don't know ones comfort or technical level, condition of the ammo being used and most certainly don't know the condition of the weapons one has. I know my comfort/technical level, the ammo I have and the rifles I have. I have never heard of one really exploding, I've heard of cracked cases, torn off case heads, broken extractors, etc, but... was it an ammo issue, or rifle issue, hand loads, hot hunting loads.. in reality... speculation aside... what was the root cause issue? Any of those things can happen in any firearm, using surplus ammo, age and internal case corrosion can affect case integrity, powder breakdown due to temp and humidity can all cause those things. The Nato/308 debate has raged on for decades, like 223/5.56 has..