larry;
You just made my point exactly, though I think it was accidental. if you check back over what i have been saying Mr goddard did in fact give "Both" service & proof pressures. for the 2 5/8" chambering he gave the service pressure of 4 tons (9500 lbs) & the proof pressure of 6.1 tons (13,700 lbs). This pretty well eliminates the possibility that he mistakenly recorded the proof pressures for the Service ones.
My main point however has been the pressures he listed simply do not mate up with the LUP's of British pressure of the era, but do very closely match what we now know as actual PSI's. As to exactly how he derived these pressures I do not know, but I think it imperative that we realize a gun proofed under these parameters "WAS NOT" proofed for a service load of 4 LUP tons. This would actually be in excess of our modern SAAMI Spec loads.
