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Confirmation - 20 x 110 RR Oerlikon case

ammocat

ammocat

Well-Known Member
Ordnance approved
I found two cartridge cases in an antique shop this weekend. I was not familiar with the cartridge case head design so I thought I would pick them up. The headstamp is marked 20-M.M. MK-II 1942. The cartridge case is 110mm long. I am assuming these are fired 20 x 110 mm Oerlikon cartridge cases. Can someone confirm this for me?
 

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Hi yes you're correct. The cases deform a bit on firing that's why there is not much neck on the case. Fired 20 x 110 Oerlikons are always like that.
Dave.
 
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