BIG ISSUE HERE - You guys are talking about certain guns being up to handling 7.62 NATO and 308 as the same thing. It's my understanding that 7.62 NATO uses 50ksi-ish chamber pressures and that 308 Winchester uses 62ksi-ish ones.
I would be very concerned about making a gun designed for 7.62 NATO only to take US commercial 308 Winchester ammo.
Am I wrong about this, and are the Galils and Yugos designed to take US commercial ammo and not just 7.62 NATO? For the Saiga-308 to be marketed as a sporting gun in the US I'm pretty sure it would be up to the task, hence the third bolt lug at the expense of making a new and very different kind of magazine. But are the Galils and Yugos the same way?
Folks who talk of thousand round torture tests probably aren't using thousands of rounds of commercial 308.
So is there something I'm missing here? If Yugo AKs are in fact up to 308 Winchester, then you bet I'll be doing a build!