pookybear308 wrote: Oops! Do I correctly understand from this that if I have an 'N' stamped Armalite barrel I should only be using 7.62 x 51 ammo and never .308? (I've had enough worries in my life with appropriate pressures in Damascus barreled shotguns...don't want any more abberations)
Not enough difference in pressure to be a problem.
7.62 Nato will chamber and fire .308 just fine
A match .308 chamber may not cycle perfectly with ammo that is out of spec.
There is no danger of doing damage ether way, just a possible reliability issue.
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