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Quote:

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Standard Pressure for "IS" is 3400 bar
" for "IRS" is 2900 bar (Rimmed)
" for "I" is 3300 bar
" for "IR" is 2800 bar (Rimmed)

to complicate the issue you also get a 8x57R_360 that uses only a bullet diameter of 8.09mm and is loaded to a maximum of 2200 bar

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None of the above is correct.

The current CIP Maximum Average Pressure (max service pressure) for these cartridges:

8X57IS (rimless S bore) = 3900 BAR or 56,564 PSI

8X57I (rimless I bore) = 3800 BAR or 55,114 PSI

8X57IRS (rimmed S bore) = 3300 BAR or 47,862 PSI

8X57IR (rimmed I bore) = 3200 BAR or 46,412 PSI

8X57R 360 = 2450 BAR or 35,534 PSI

The rimmed 8s are loaded to much lower pressure than the rimless and rimless loading data should not be used.

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All of it is correct!

I did not say anything about CPI Values of today! The values i gave are from the German firearms law book in which little things like minimum / maximum camber dimension Maximum pressure maximum head-space etc specified for each caliber and of course you got the same for cartridge's everything in the smallest detail and that is the standard on which the gun was build looooong before CPI came in to the picture

The gun was build by Merkel in Suhl, Germany, for Geyger in Berlin (Cabela's type Sales business only). Suhl and Berlin are located in Germany and the Rifle was build around 1935-38 and it was proofed under the German law of the time and that's are the values i quoted!

400 do you still think i am wrong and you right??

by the way my max pressures for the rimmed version are 300bar lower than yours / CPI?



cheers

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