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Thread: Mauser 213

  1. #1
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    Mauser 213


    In 1945 Germany had a clear lead in large calibre aircraft guns with 3 different guns in service, the Mk 101, Mk 103 and Mk 108. The allies did not have any such guns.

    Germany was also developing the MK 213/30 (30mm cannon) which was a revolver cannon developed by Mauser at Obendorf. The 213/20 (20mm cannon) was also being developed as a possible high velocity gun.

    British teams visited Obendorf in the summer of 1945 and sent back to Britain material and drawings relating to the MK 213/30 and MK 213/20.

    By September 1945 a programme or work had started with pressure barrels being ordered for the German MK 213/30 cartridge. A quantity of proof projectiles and brass cartridge cases similar to the steel cased German MK 213/30 cases were also ordered.

    By October 1945 it was decided that the particular German MK 213/30 gun to be used as the basis for the Aden gun would be the V.6 type (Prior to the V.6 type of which Mauser had made 10 before the end of the war there were 5 earlier prototypes).

    The photographs show a war time dated Mauser 213 (30x85) next to a post war experimental Aden LV round (30x86). Its clear who copied who!!

    Both INERT and legal to own.

    Dave.
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  2. The Following User Says Thank You to SG500 For This Useful Post:

    Lou (25th September 2011)

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    2 very nice rounds Dave! Dave

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    Thanks SG500,
    Thats a nice write up on the aden development, i had not made the connection between the Aden and the 3cm Mk108 German round. Looling at those two side by side they are incredibly simmilar, nice rounds to have in your collection.
    Best Weasel.

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    Hi Weasel & Dave, thanks.

    Weasel, the round in the photo is not a 3cm Mk 108, its a Mauser 213, a completely different round and the gun worked in a different way (The Mauser being a revolver cannon) but yes the projectiles are the same as often happens with experimental rounds. If you compare a standard Mk 108 to a Mauser 213 the rim is different and the Mauser is belted.

    Dave.

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    Nice rounds indeed: the Aden 30x86B is quite common, but the MK 213C 30x85B round is extremely rare.

    A couple of additional comments: the first model of Aden, the 3M or LV, used the 30x86B ammunition and this saw service in the 1950s. The French slightly lengthened the case of their version of the same MK 213C design to 97mm for the DEFA 540 series. However, the RAF decided that the muzzle velocity of the LV was too low (at about 600 m/s) so the case was lengthened to 111-113mm for the Aden HV in conjunction with the French, who adopted the same case for the DEFA 550 series (but steel rather than brass cased, and with other differences which made them non-interchangeable). Shell weight was reduced slightly, but muzzle velocity went up to 750-800 m/s.

    The pic below (from the Ammunition Photo Gallery on my website) is an interesting one as it shows the two WW2 German 30mm rounds - the 30x90RB for the MK 108 and the 30x184B for the MK 101/103 - next to the 30x86B, 30x97B, 30x113B, 30x150B for the current French 30M791 revolver cannon used in the Dassault Rafale, and the 1950s Soviet 30x155B for the NR-30 aircraft gun used in the MiG-19 and Su-7 series.


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    20mm Mauser213 and 20mm Aden

    A couple of pictures of the 20mm Mauser 213 and the 20mm Aden. Again its not hard to see who copied who!! The obvious difference being that the Aden is belted. I've included the headstamp on the Mauser. All inert, primers oiled etc.
    Dave.

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    Oops forgot the pictures!
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    Wow! Both of those rounds are exceedingly rare. I can only dream...

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    I've just been asked to provide some measurements for the Mauser 213/20 so here goes:

    Case length 134.79mm
    Overall round length 198.08mm
    Rim diameter 31.75mm
    Primer diameter 9.92mm
    Neck length 8.11mm
    Shoulder length 12.41mm
    Diameter of groove at bottom of case 27.01mm

    Hope this helps.

    Dave.

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    rcaf53 (21st September 2011)

  12. #10
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    Just a few more photos of Mauser 213 rounds out of a friends collection.
    Note the variation on the driving band from the one I posted at the start of this thread.
    The primer pockets seem to be different diameters too.
    Dave.
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