6 mm American, Deutsche Metallpatronenfabrik (D.M.), 1894, WRA Co.Technical Drawing Collection

From the Buffalo Bill Center of the West, McCracken Research Library digital collection, WRA Co. drawing collection here is a copy of a drawing from Deutsche Metallpatronenfabrik (D.M.), dated August 2nd, 1894, drawing No. 426.
I assume this drawing is showing an early version of the 6mm US Lee Navy, is this correct?

Included in the pdf below is a screen shot of the drawing in its entirety and then screen shots of enlarged sections of the drawing to provide better detail.

6 mm American, Deutsche Metallpatronenfabrik (D.M.), 1894, WRA Co…pdf (830.1 KB)

Any corrections or additional information are most welcomed.



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425A is the 6mm Lee number with the 6mm shoulder.

To my eye (holding up a round & squinting with one eye) this looks the be the rimless variation with the ,236 Lee shoulder.

Edited to remove a comment about case variations

Thanks Brian for ALL these interesting drawings.

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bdgreen, This drawing is a great discovery and cartridge historians should be very grateful to you for posting it. It is not an early version of the 6mm Lee Navy. The story surrounding this cartridge is so interesting that I’m going to submit a short article to the IAA Journal.

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Interesting reference to Mr. Luger in the drawing. Around that time he was in the US trying to interest people in his own rifle design.

Lee and Mauser would end up in court over their rifle patents. Mauser won.

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Some possible information from a discussion on the Axis History Forum-

"Winchester rifles in Schutztruppe service", (https://forum.axishistory.com/viewtopic.php?f=73&t=137681&p=1200671)

Quote from the above listed thread:

Re: Winchester rifles in Schutztruppe service
Post15 Apr 2008, 01:27

In 1895 Mauser made 2,000 trial rifles in an experimental 6mm cartridge for the German Rifle Testing Commission, so they were interested in these small calibers that seemed to be the rage in the 1890’s."


Gotz and Ball give the ctg designation for these arms as 6x59. Olsen states it was similar to the later 6x58 Foerster.

On the way to Gewehr 98, calibers down to at least 5.5 mm were tested. There is a report from “Centralstelle” that mentions testing 5.45 mm armor piercing bullets. A number of test rifles, particularly in 6 mm, survived.
The East German Communist government saw fit to force museums to drill big holes into each cartridge chamber, lest they be used against it. (Considering the unavailability of ammunition was beyond the apparatchik horizon, of course.) That wise decision makes chamber casts a little difficult today.

P.S. While Metallwarenfabrik is very common, in this case its Deutsche Metallpatronenfabrik (D.M.).


Correction made, thanks.


Regarding your post of the willfull vandalism of antique firearms by these Bolchevick nitwits I must say
that I once owned Mauser books were the handiwork of this human garbage was displayed it turned
my gut and left me speechless as to its political mental illness.And yes they are working very hard
to get hold of power again