On the 9.3x72R Sauer vs 9.3 74R ; beside the slightly shorter case, the head diameter of the proprietary round is larger by about .3 of a millimeter (12.1 mm). This can cause problems for those reloading with cheap 74R brass and even quality brass can exhibit signs of case-head separation after more than one or two reloads. Blaser 30R brass has the correct head diameter as does 7x57R (oddly, the 8x57R is smaller), but alas, both are too short. If a person has access to a lathe, 40-90 Sharps basic brass can be used after trimming rim, head and length. I have only seen the Sauer 72R cartridge chambered in drillings of their making. I think they gave up on the load when the 9.3x74R became widely-accepted, probably circa 1905. The Sauer Company books recently found in the Suhl archives dont go back beyond about 1910. At least they do give us a detailed, albeit, short look into pre-WW1 Sauer production records, something we have never had before.
Good shooting,
C.
Last edited by C. Kofoed; 09/07/08 10:52 AM.
