Perhaps a slightly more comprehensible translation would be:
The cartridge was developed by or for the weapons manufacturer Thieme & Schlegelmilch in Suhl and came on the market in 1890 under the name "Nimrod", typical for this manufacturer. It does not use the "newer" bullet dimension of .366" like the cartridges 9.3X62/64/74R, but rather the older, slimmer diameter of .364", like the 9.3X72. With the 12.5G jacketed flatnose bullet it should develop only about 3000 Joules of muzzle energy.
Ammunition has no longer been manufactured since the war. For the reloader, cartridge cases are available from Horneber. The 12.5 G jacketed flat nose bullets are available from RWS, Delsing, and Sellier & Bellot, heavier jacketed pointed bullets (13, 15 and 16 G) are also available from Delsing. Dies are available from RCBS (and possibly C&H).
Check to see if the cartridge is listed in the "Quick Load" reloading program developed by Engineer Brömel. If this is the case, then reloading (feeding) information can very easily be obtained.
It will be well to note in developing loads whether the weapon is proofed for black powder or for smokeless.
