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View Full Version : Looking for max pressure



abunaitoo
03-06-2020, 02:52 PM
I'm looking for the max pressure rating, in CUP, for these two pistol cartridges.
9mm Largo (9mm Bergmann–Bayard, 9mm Bayard Long)
356tsw

abunaitoo
03-07-2020, 06:21 PM
Anyone????
I just need it for a display on different 9mm.
Picture I found has those two that i can't find the pressure for.

cupajoe
03-07-2020, 07:27 PM
Not listed on the SAAMI specs?

DocSavage
03-07-2020, 09:22 PM
Did you check wikipedia?

DocSavage
03-07-2020, 09:29 PM
According to wiki 9 mm Largo is "slightly" lower than standard 9mm luger pressures FWIW. 356 TSW no info

JonB_in_Glencoe
03-07-2020, 11:10 PM
it's probably listed in the book, cartridges of the world. I have the book, but I am unable to locate it.

Outpost75
03-08-2020, 03:17 PM
CIP doesn't maintain archival pressure standards for obsolete cartridges.

9mm Browning Long and .38 Colt Rimless Smokeless (NOT Super) would be close:

Pmax (sample average) 1650 bar = 23931.23 psi
Max. indiv. pressure 1898 bar = 27528.163 psi