Hi Gert. I cant find much on this calibre on the net - and what I can find is in German. What is the performance /how does it compare to the 9.3/338 , and does it fit into a medium length CZ550 action, or only in a full length magnum action? (The main appeal of the 9.3 for me is that it is handy - much more so than most .375's)
Hallo Daga Boy here is some info:/ Bruce some info about Herman Goring as well
Here are my notes on the 9.3x70 Magnum which is the DWM version (note the 9.3x70 RWS is a totally different cartridge).
++++++++++++ 9.3x70 Magnum (DWM)
This cartridge was originally introduced by DWM as case #569 and original DWM cases are rare. The case was based on the 404 Jeffery (10.75x73 : W110) and designed as direct competition to the 375 H&H Magnum.
Introduced in 1928, it was subsequently listed in the 1930’s DWM ballistic catalogs. Evidently designed by Brenneke (?), as so described in a 1932 article “Recent Developments in European Sporting Ammunition” in the ‘American Rifleman’ by Frantz Rosenberg. In this article he states : “The firm Brenneke has recently produced another tremendous cartridge which they call the ‘9.3x70 Holland & Holland’. It is a rimless cartridge for repeating rifles, with a longer case than the 9.3x62 and uses the same bullets, with one addition alone, the 300-gr ‘Ideal’ hollow-point boat tail.”
This reference to ‘Brenneke’ is debatable as it is the only reference to ‘Brenneke’ that I know of with respect to this cartridge, although there are very few references to this cartridge at all. Certainly it is not shown in three 1930’s Brenneke catalogs. The DWM case book has the words “Mauser (Holl. & Holl.)” written in the comments column for this case whereas all the other Brenneke cases that they produced had the Brenneke name attached. It was also evidently listed in a 1930 DWM Ballistics catalog as ‘H & H’. This reference to ‘Holland & Holland’ must refer to the rifle action as the case bears no resemblance to any H&H case type.
Five 9.3x70 loadings were shown in the 1930, 1934 and 1937 DWM Ballistics books “Patrone u.Schuß” :
17 g Starkmantel
18.5 g TM and VM
19.5 g Brenneke TIG,
as well as up to 5 different Laborierungen with 15 g TM (see Headstamp2 images).
A DWM factory drawing is known dated 28.6.28 but the headstamp drawing pasted over it shows a “P” code (1931). Originally this was a fairly short-lived caliber because it only appeared in DWM catalogs for a short period and did not survive WW2 with few specimens existing. DWM production of the 9.3x70 Brenneke cases is known in two hs variations: The earliest is probably the case without hs (HP bullet), specimens having come from an early (c1928-1930) DWM packet found in Australia. It is also known in SP loading with “pDWMp K 569 K” hs which represents 1931 and are rare. Whilst this cartridge was listed in a DWM 1934 Ballistics catalog, it was not shown in the full DWM 1934 or the 1939 price-list. This cartridge is now believed to have been produced by DWM only in the c1928-1931 period.
The only well-known rifle in “9.3x70” caliber was built by Ludwig Schiwy in Berlin for Hermann Goering and this rifle was described as a “Double Square Bridge Mauser Magnum (Speed) and also an 'H & H” (de Coux). An example of a 9.3x70 exists produced from 10.75x73 (404 Jeffery) with “DWM 555 KAL. 404” hs but with a slightly lower shoulder and noticeably longer neck that Heinz Held refers to as a “9,3 x 70 Schiwy”. He believes that this was the “wildcat” cartridge that was used in the 9.3x70 Mauser Rifle built by Berlin Gunsmith Ludwig Schiwy and famously given to Hermann Göring in 1940. The cases used were likely early DWM production c1924 which are very early to be for rifle produced much later ?
There is also another example with “DWM L L 10,75x73” hs produced from what are now believed to be post-WW2 404 Jeffery cases produced by DWM in 1954 which is very late for anything other than a homemade job and the case neck seems to show that (see image). This 9.3x70 dummy more closely resembles the c1928-1932 DWM production and according to Bill Woodin via a small sticker on the case, is of the type used in H. Goring’s rifle.
More recently c1990’s, Günter Frères and Harald Wolff (of HWM) have revived this cartridge and HWM is believed to have produced this case. [ED: unconfirmed, possibly no hs by Horneber] There are also examples made from 404 Jeffery with “KYNOCH .404” hs. These were loaded with 250gr Speer, 78gr IMR4064. The cases have dark annealing color in the neck/shoulder area and have a dark grey, almost black primer. Because of the annealing, these case don’t appear to be “home made”.
There is an example of an ex-Kynoch case which appears to have been modified to this case type and had the original hs milled off. This could be an early prototype or a later attempt at making this case when the supply was no longer available. The dimensions do vary slightly from the original DWM and modern EXPERT cases.
Even more recently (by 2001) this was produced by Horneber with a “EXPERT 9,3x70 MAG” hs for Reimer Johannsen GmbH. Johannsen evidently offered these with projectiles of 16,2 18.5 19.2 and 20,7g using five Loadings (all fmj ??). There are also examples without hs that have been described as “Gold Washed” but may in fact be CWS case (See images- Horneber or possibly old).
A DWM packet containing no hs examples is shown with the back label stating: “Bei Patronen, die nicht mit der unsererseits erprobten und festgesetzten Normalladung versehen sind, erhalten die Verpackungs- schachteln den Stempel Extraladung.” which translates as: "
“With cartridges that have not been tested by us to determine the normal charge, they receive the Extraload packing-box stamp.”
According to VÌt Krčma (CZ): “Very few arms chambered for this cartridge were made. Probably the best known rifle is that made by Berlin gunsmith Ludwig Schiwy. This weapon was in the possession of Hermann Göring. Göring was one of Hitler’s chief counsels and commander of the Luftwaffe. He was also Reichsjagermeister (Chief Hunter of the Empire). This title afforded him many privileges that he used to his advantage. His favourite hunting rifle was a calibre 8x75R. He also had a large collection of rifles, many custom made for him. One of the custom rifle builders that supplied him was Ludwig Schiwy. A plaque on the rifle states that it was presented to Goring for Christmas 1940. The initials “F.G” are also on the rifle. The theory is that the original owner of the rifle was Franz Gurtner - imperial Minister of Justice in years 1932 - 1941. Gurtner was right-wing extremist and a long standing friend of Goering’s.”
If Heinz Held is correct and the rifle concerned was chambered for a different case type than the 9.3x70 Magnum then that would differ from conventional opinion. The “DWM 555 KAL. 404” hs with serif lettering and no date codes is probably the earliest DWM production of the 10.75x73 and so would be c1924 which is fairly early (and scarce) to be used for a mid/late 1930’s to 1940 “Wildcat”. It is quite possible that this cartridge was an original prototype for the 9.3x70 Magnum of 1928. The only way to be sure would be to see which case type properly chambers in that Schiwy Mauser
hello
if i understand the 9.3x70 DWM is based on 404 jeffry case ,so it different to 9.3x70 RWS who look a elongated 9.3x62
good thing to different the two
