I have tried to collect data on these cartridges before, as I happen to have a single shot rifle with caliber 9,3x57R-360, with Vienna BP proof marks from 1896, and a later nitro re-proof, between 1933 and 1945.
- For making new 9,3x57R 360 cartridges, I was looking for period loading data or ballistical figures (working pressure or v0 would already have been helpful), but found nothing.
(There are some relatively new articles explaining the different case shapes (e.g. E and D) and giving some loading prescripts, either with black powder which I did not want or with some US nitro powders which I did not have, and no pressure data either).
It is not listed in the 1940 RWS handbook.
My conclusion is the cartridge was obsolete before the publication of ballistical data became customary, such as in the RWS handbook.
I have solved the issue by comparing available data for the 9,3x72R, calculations with the ballistic program QuickLoad, and careful testing and velocity recording.
That rifle is now shooting good enough to take it hunting.
My loads use shortened 9,3x72R cases, 193 grain RWS jacketed bullets or H&N swaged lead, powders are Rottweil R901 or SR4759.
These work well, but still I’d be curious about original ballistic data…
- During my search, I ran into plenty data for the rimless 9,3x57 Mauser which was mainly used in Scandinavia.
(German hunters used the 9x57 or 9x57R, plenty of guns and data for these).
But only one mention of a rimmed 9,3 mm version.
A friend has an Ernst Steigleder catalog from the 1920s which lists:
"Kal. 9,3x57, ohne und mit Rand…"
That might well have been a printing error, we found no other reference.
But no I see my Dad found a cartridge!
Here it is next to a rimless 9,3x57.
Headstamp H.UTENDOERFFER NÜRNBERG
Bullet diameter 9,29 mm
Is there any more knowledge ?