7.5 x 55.4 Schmidt-Rubin Blank


#1

I have a lacquered steel 7.5 x 55.4 Schmidt-Rubin wood bullet blank, model 1911. The headstamp is 10 SDA A 44.
The “S” and “A” are above and below the “D” and are about 1/2 the size as the “D”. What do they stand for and what is the significance of the small letters?


#2

The “D” stands for “Dornach,” the large “A” stands for “Altdorf,” the small “S” stands for “Schwedenstahl (Swedish Steel)” and the small “A” stands for “Aluminumsaft” which I believe has to do with the primer, but I could be wrong. My very poor German is not up to that word’s definition. Reference: “Schweizerische Patronenboden-Bezeichnungen, 1867-1985,” by Michael am Rhyn.


#3

John–Thanks for the information. I have several 7.5 x 55.4 Schmidt-Rubins, but all my others are brass cased and I had never run into the small letters like on this case.