Category talk:Automatic cannons

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How come there are still so many calibers in modern autocannons (20/23/25/27/30 millimeters)? Shouldn't there be an ideal diameter? It looks like the Mauser BK27 is gaining some favour lately. 195.70.32.136 19:06, 16 December 2005 (UTC)

Probably coz their for different autocannons of different armies

Yeah it is a bit weird but yeah it probably is cause theyr different calibres in different countries