IWK 6,5x43mm Experimental


#1

Does anybody have data/information about the 6,5x43mm Experimental Cartridge developed by IWK (IndustrieWerkeKarlsruhe) in Germany in 1962. It was a contract commisioned by the German Army/Ministry of Defence.


#2

Military cartridges are not my speciality but I can add a bit of info (or should I say a bit of lack of info !).

Post WW2 cases with an IWK headstamp generally have DWM case numbers. There does not seem to be such a number for this 6.5x43 of 1962 vintage. 1962 cases should be in the range of #617-624 which are all allocated in the DWM case book. FYI The similar 7.62x40 with “IWK 7.62x40 62” headstamp was allocated case #618.

Maybe it was a subnumber (eg a, b c1 etc) which were quite often used by DWM. This may possibly even use case #618a (as they were likely a related development) but no such sub-numbers were shown for this range of numbers in the DWM case book.

Another DWM mystery ?


#3

According to “Labbett”, both the 6.5x43 and 7.62x40 IWK experimentals were produced for ballistic testing using test barrels, and no rifles were chambered for the rounds. There is also a 4.0x37 IWK with a 1972 date.


#4

Box label photo from the internet.


#5

WBD, is there a DWM case number listing or catalog you are referring to?


#6

EOD, there are many copies of the DWM (Lorenz) case numbers. Mine is the expanded version of the one from European Sporting cartridges and I don’t know of a better one. It has corrections that are not shown in any DWM list that I know. Most DWM lists are just amalgamations of other lists, many don’t have the post WW2 additions and aren’t the result of any genuine research. I believe that Fede has a similar list.

The DWM numbers are also shown in the DWM Case book copies of which are obtainable from GIG Pubs.