Swiss 7.5m/m M1911 case with code date


#1

Some while ago a friend gave me a Swiss 7.5m/m cartridge he’d found in someone’s junk box. The case is headstamped at 10, 12, and 2 o’clock T, 2, T, and at 6 o’clock is found SXST, which I take to be a date code. As I received the round it was loaded with an American-looking sporting bullet. I pulled the bullet and found a case full of powder turning green, so I dumped the charge and cleaned out the case. The case has a factory-crimped Berdan primer and no indication of ever having had a casemouth crimp for a bullet. So, my questions are two: (1.) did this case leave Thun as an empty?, and (2.) are the letters SXST indeed a code date, and, if so, what year does it represent? Thanks, Jack


#2

SXST = SoiXante SepT = 1967


#3

Vlad - these date codes are usually used on commercial ammunition. The bullet you pulled may well have been the factory-loaded projectile. I have a bunch of 8 x 57 mm with these codes, all are sporting loads.

John Moss


#4

Just to clarify, those Swiss date codes were also used on Swiss match ammunition as well as hunting ammunition.

7.5x55 Swiss Match ammunition is known with the following codes :

M+FA : QVS, SX, STU, STN, STD, QVX, QVT(unconfirmed)
T T (Thun) : SXST , STST, QV, QVH

Here is an updated vn of my checklist:

v =confirmed to exist v? =believed to exist (either by year of introduction, drawings or known packet labels)

Year M+FA MFT Exists Derivation 1928 VH VH v? Vingt Huit 1929 VN VN v Vingt Neuf 1930 T T v Trente 1931 TU TU v Trente Un (TU6) * 1932 TD TD v Trente Deux 1933 TT TT v Trente Trois 1934 TQ TQ v Trente Quatre 1935 TC TC v Trente Cinq 1936 TX Trente siX 1936 TSX v Trente SiX 1937 TS v Trente Sept 1937 TST Trente SepT 1938 TH TH v Trente Huit 1939 TN TN v Trente Neuf 1940 Q Q Quarante 1941 QU QU v Quarante Un 1942 QD QD v Quarante Deux 1943 QT QT v Quarante Trois 1944 QQ QQ Quarante Quatre 1945 QC QC v Quarante Cinq 1946 QX Quarante Six 1946 QSX v Quarante SiX 1947 QS v Quarante SepT 1947 QST v Quarante SepT 1948 QH QH v Quarante Huit 1949 QN QN v Quarante Neuf 1950 C C v? Cinquante 1951 CU CU v Cinquante Un 1952 CD CD v Cinquante Deux 1953 CT CT Cinquante Trois 1954 CQ CQ v Cinquante Quatre 1955 CC CC v Cinquante Cinq 1956 CX Cinquante siX 1956 CSX v Cinquante SiX 1957 CS Cinquante Sept 1957 CST v Cinquante SepT 1958 CH CH v Cinquante Huit 1959 CN CN v Cinquante Neuf 1960 SX SX v SoiXante 1961 SXU SXU v SoiXante Un 1962 SXD SXD v SoiXante Deux 1963 SXT SXT v SoiXante Trois 1964 SXQ SXQ v? SoiXante Quatre 1965 SXC SXC v SoiXante Cinq 1966 SXX v SoiXante siX 1966 SXSX SoiXante SiX 1967 SXS v SoiXante Sept 1967 SXST v SoiXante SepT 1968 SXH SXH v? Soixante Huit 1969 SXN SXN v Soixante Neuf 1970 ST ST SepTante 1971 STU STU v SepTante Un 1972 STD STD v SepTante Deux 1973 STT STT v SepTante Trois 1974 STQ** STQ v SepTante Quatre 1975 STC STC v SepTante Cinq 1976 STX v? SepTante siX 1976 STSX SepTante SiX 1977 STS v SepTante Sept 1977 STST v SepTante SepT 1978 STH STH SepTante Huit 1979 STN STN v SepTante Neuf 1980 QV QV v Quatre Vingt 1981 QVU QVU Quatre-Vingt Un 1982 QVD QVD Quatre-Vingt Deux 1983 QVT QVT v Quatre Vingt Trois 1984 QVQ QVQ Quatre Vingt Quatre 1985 QVC QVC Quatre Vingt Cinq 1986 QVX v Quatre Vingt siX Match "M+FA QVX" 1986 QVSX Quatre Vingt SiX 1987 QVS*** v Quatre-Vingt Sept 1987 QVST Quatre-Vingt SepT 1988 QVH QVH v Quatre-Vingt Huit 1989 QVN QVN Quatre-Vingt Neuf

  • A TU6 code does exist on 9.3/72 examples from M31 or ‘D’ packets : 
    ( - see the notes on page 226).
    

** The original Altdorf list show 1974 = STR, this was a mistake corrected by 1972 to STQ. No STR code exists.

*** The last known packet of purely sporting ammunition (10.3x60R) was dated 23 Feb 1987 (QVS) but examples of this calibre with QVS hs are not confirmed as existing. However 7.5x55 Match ammunition is known with the QVS and QVH hs. Factory lists clearly show codes up to 1989 but these codes were established in advance of production and the 1989 code (QVN) is not known to have been used.

Unknown “1”, “2” and “3” codes are also known that appear to be used c1927-1928 and may be pre letter date codes?

Note that some codes have often been misidentified : CSK (= CSX), plus some beginning with O should be Q (eg OVS = QVS).


#5

WBD–I assume the information in the above post was in nice columns originally. Go here for instruction on how to post columnar information on the Forum.

viewtopic.php?f=9&t=7064


#6

Since the propellant in this cartridge was perforated stick, together with the appearance of the bullet, I didn’t feel the round was assembled in Europe. Is the lack of a casemouth crimp diagnostic at all? At least it’s clean now. Thanks to all and will file the date code list away. Jack


#7

WBD–I see that you figured out how to do columnar information on the Forum. Much easier to read now. With just a little editing to align things, it could be cleaned up even more.