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Old March 18, 2013, 01:30 PM   #38
Bart B.
Senior Member
Join Date: February 15, 2009
Posts: 6,318
AK103K, there's not a 10,000 psi difference between commercial and military ammo. It's about a 2,000 psi difference between averages for MIL SPEC and SAAMI standards.

There's typically at least a 4,000 psi spread across a given lot of ammo's peak pressure anyway; both 7.62 NATO and .30-06 ammo types. Even with that much spread in pressure, a muzzle velocity spread is often less than 30 to 40 fps for each one.

For testing with the same equipment, check out testing methods, pressure and velocity for both CUP and PSI systems in the following:
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Last edited by Bart B.; March 18, 2013 at 01:45 PM.
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