Others may not agree with this but as I understand it the FR-8 is safe for use with 7.62x51/.308 ammo, these are built up on large ring M98 actions once barreled for 8x57. It's the small ring FR-7 that was meant to fire the 7.62 CETME round only, a reduced power version of the 7.62x51 used in the early CETME rifles. The 7.62x51, 7.62 CETME and .308 Winchester cases are all identical dimentionally but pressure levels differ. The use of 7.62x51/.308 ammo in Spanish FR-7 and FR-8 rifles is a contraversial subject( and to a somewhat lesser degree 7.62x51 vs .308 chamber pressures) but theres lots of information available on the internet to help you decide for yourself. FWIW, Grafs has/had some reasonably priced 7.62 CETME ammo last time I looked. I've owned several FR-8's over the years and shot a mix of commercial .308 and surplus 7.62x51 through them with no problems.
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