Quote:
Originally Posted by Sieger
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The NATO Cross in Circle ammo (NATO Proofed Ammo)
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Points of order, no disrespect intended.
The cross in a circle indicates only that the ammunition is of a type acceptable to NATO.
NATO does not proof ammunition or firearms. NATO is a political treaty, and its signatories may or may not honor the terms of that treaty.
There is no such thing as a "NATO load". Each NATO signatory is a sovereign nation and uses whatever ammunition, loaded to whatever standard they set, in whatever firearm they choose.
Chamber pressure cannot be deduced from muzzle velocity.
Hobby chronographs are not calibrated to any given standard, nor can the owner do a valid recalibration. They are effectively toys, and don't produce velocity readings that can be meaningfully compared to velocity readings produced by any other chronograph.