Quote Originally Posted by Edward Horton;105873[COLOR="Blue"
I found this about NATO proof standards for the 7.62 NATO.

The minimum proof and performance requirements for small arms ammunition of NATO calibres are covered in STANAGs as follows:

7.62 mm. STANAG 2310 and NATO Manual of Proof and Inspection AC/225 (LG/3-SG/1) D/9.

Each weapon and component considered vulnerable to the effects of a rapid change in pressure, for example barrels, breech blocks and bolts, will be tested by firing one dry round at a corrected minimum of 25% over pressure and one oiled round at a corrected minimum of 25% over pressure. 25% over pressure means 25% in excess of the Service Pressure (Pmax). The Service Pressure is defined as the mean pressure generated by the Service Cartridge at a temperature of 21°C. Such a high pressure proof is conducted with both the weapon and ammunition conditioned to an ambient temperature of 21°C.[/COLOR]
Where did you find this Ed? Can you post a link for us please?