Information about the ww1 42cm German case

[kz11gr]

Hi

Have you please some informations about the 42cm cases ( Gamma Mrser)

Some Pictures , case dimensions .


Thank you

 

[charley777]

There were two 42cm guns used by Germany, as far as i know.
Have found a drawing for the Gamma Morser case.
Dimensions:-
420x429R (rim ?) 42cm M-Gerat Dicke Berthe
420x660R (rim 488mm) 42cm Gamma Haubitze (case ID: 6320)

 

[kz11gr]

There were two 42cm guns used by Germany, as far as i know.
Have found a drawing for the Gamma Morser case.
Dimensions:-
420x429R (rim ?) 42cm M-Gerat Dicke Berthe
420x660R (rim 488mm) 42cm Gamma Haubitze (case ID: 6320)

Hi charley

Thank you
But why such a difference between the two cases ?

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[highlandotter]

From what I can find out, there were different modles of 420mm guns developed in WW1 by Krupp. The Big Bertha was developed for a lighter gun that could be delivered by truck. The older howitzer was too heavy for that at the time. Possibly the lighter gun used a lighter charge and the shorter case?

 

[charley777]

hello kz11gr...interesting question...i am sure that highlandotter is correct about the guns.
I have not found the rim size of the shorter case...so i have no idea if it is a short version of the longer one or actually a different design.
Perhaps some of our German experts can clarify?
Charley

 

[kahu1]

Isn't one of the cases (can't recall which!) necked down to 420mm? ie, it has a shoulder as opposed to being straight sided.

cheers
Bob

 

[dano1917]

Aah, the "big stuff" sweet, have never seen anything close to this size necked down, but hell I am the student so will will be watching this closely. I assume this is the stuff thrown at Belgium forts in the early siege days of WW1? The whole damned 20th century belonged "downstairs"..........Dano

 

[kz11gr]

hello kz11gr...interesting question...i am sure that highlandotter is correct about the guns.
I have not found the rim size of the shorter case...so i have no idea if it is a short version of the longer one or actually a different design.
Perhaps some of our German experts can clarify?
Charley

Isn't one of the cases (can't recall which!) necked down to 420mm? ie, it has a shoulder as opposed to being straight sided.

cheers
Bob

Hi

The rim size is shorter for the short 42cm (a friend has found a case).

The long case and the short case are different .

The short case is necked .


Look here : http://www.kaisersbunker.com/cc/cc16.htm

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[charley777]

Thanks kz11gr !!