VVelox: Some people state that the lower pressure in the Spanish Cetme rounds was designed to compensate for use in the Spanish Nato 7.62 bolt-action rifles, which were converted from the old small-ring 7mm Spanish Mausers.
At gun shows, guys selling such converted Spanish 7.62 bolt-action rifles don't mention (don't know, or don't want to lose a sale?) that these could be unsafe with modern .308 ammo.