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Swiss 20-MM

jvollenberg

Well-Known Member
Ordnance approved
Swiss 20-MM
Looking for information and nomenclature:
Length: 203-MM
Case Length: 129-MM

Joe
 

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If it's just the basics you are after, then this one is the the Oerlikon 20 x 128 developed in the 1950s for the KAA, KAB and KAC automatic cannon. It was (and still is, although its now all one company) a close rival for the Hispano 20 x 139 for the HS 820 etc.
 
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