As a security measure, the German military assigned alpha numeric codes to all the different manufacturers of the Mod. 98 Mauser in order to reduce their vulnerability to sabotage.
Factory codes for the Mauser Kar. 98k went through several changes during the designs production run. The first series is sometimes referred to as the "S prefix", wherein the manufacturer is represented by a number, and the year of manufacture is represented by a letter. In 1936, the letter suffix was dropped and the year of manufacture was stamped into the receiver ring. Some production runs carried all four digits of the year, others just the last two. For some reason , Berlin-Suhler (BSW) was never brought into the "S prefix" system.
In 1938 the "S" prefix was dropped, but the numeric factory codes remained in use until 1940 when the Germans began switching over to two and three digit letter codes. This switch was relatively gradual; many factories did not complete this transition in markings until 1941. The letter code system remained in use until the end of the war.
MAUSER FACTORY CODES
S/27.G Erma, Erfurt 1935
S/42K Mauser, Oberndorf 1934
S/42G Mauser, Oberndorf 1935
S/147K J.P. Sauer & Son, Suhl 1934
S/147/G J.P. Sauer & Son, Suhl 1935
S/243G Mauser, Borsigwalde 1935
S Prefix with Year of Manufacture
S/27 Erma, Erfurt 1936-38
S/42 Mauser, Oberndorf 1936-38
S/147 J.P. Sauer & Son, Suhl 1936-38
S/237 Berlin-Lubecker, Lubeck 1936-38
S/243 Mauser, Borsigwalde 1936-38
BSW Berlin-Suhler Waffen und
42 Mauser, Oberndorf 1938-40
147 J.P. Sauer & Son, Suhl 1938-40
27 Erma, Erfurt 1938-40
237 Berlin-Lubecker, Lubeck 1938-40
243 Mauser, Borsigwalde 1938-40
337 Gustloff Werke, Weimar 1939-40
660 Steyr Daimler-Puch, Steyr 1939-40
945 Waffen Werke Brunn, Brno 1940-41
ar Mauser, Borsigwalde 1941-44
ax Erma, Erfurt 1940-41
bcd Gustloff Werke, Weimar 1941-45
bnz Steyr Daimler-Puch, Steyr 1941-44
byf Mauser, Oberndorf 1941-45
ce J.P. Sauer & Son, Suhl 1941-44
dot Waffen Werke Brunn, Brno 1943-44
dou Waffen Werke Brunn, Bystrica 1942-45
duv Berlin-Lubecker, Lubeck 1940-42
svw45 Mauser, Oberndorf 1945
swp45 Waffen Werke Brunn, Brno 1945
DOUBLE CODES (combined production efforts)
ax/ar Erma, Erfurt & Mauser, Borsigwalde 1941
bcd/ar Gustloff Werke, Weimar & Mauser, Borsigwalde 1942-43
bcd/bnz Gustloff Werke, Weimar & Steyr Daimler-Puch,
All info courtesy of Glenn M. Gilbert, "American Rifleman" magazine, Sept. 2006 issue.
This is my first post regarding Mausers. I have several sporterised Mausers in various calibres.
I am at the moment proposing to make a .338-06 Ackley Improved using one of the listed actions above. I do believe however, that some actions are 'better' than other because of where they were made and that some actions are stronger than others and again some actions are not real good as the heat treatment has made them too brittle.
The action I have is the S237 1938.
Can anyone tell me if this is a good, bad or indifferent action?