A little info that some people might find interesting that is not over exaggerated or based on urban myth.
The Truth About 308 Win and 762 NATO
http://home.comcast.net/~ehorton/The...d 762 NATO.pdf
Is it safe to shoot 308 Winchester in a rifle chambered for 7.62 NATO?
What about 7.62 in a 308?
By Jim Bullock
http://www.smellysmleshooters.net/ammopressure.htm