Originally Posted By: FlyChamps
Larry, I suspect that the 3-digit pressure figures that he was given by the proof house were in BAR. However, they would seem low for a 20 bore.


I thought about that Fly, and like you figured that they were on the low side for a 20, if in bars. But it's a little unclear, because while 850 bars is the CIP standard for a 12 bore, that's proof pressure, not service pressure.