Nato is almost alway higher PSI then commercial. And the 7.62 nato is no different.
As to chamber dimensions. Yep that is usually the case. The real issue is using commercial loads in a military chamber. Military chambers are designed to take nearly anything. Dirty, dented, etc. It will chamber and fire nearly all of them with no issues.
The comercial chamber being more tight will not tolerate dirty dented cases like a military chamber will.
Originally Posted by ar15barrels
The above statement i consider a term of endearment
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