Commercial .308 is a no-no in the Cetme. From what I have read, it may be hotter than 7.62 NATO with a softer case. You are more likely to get case separations with .308 because it molds to the grooves in the chamber and can't be extracted. Milsurp 7.62 is much cheaper than commercial .308 Win anyway. I have been shooting South African surplus in my Cetmes (and FALs) without any problems.
Drakejake
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