The 40mm/56 caliber gun in United States naval gun terminology indicates the gun fired a projectile 40mm in diameter, and the barrel was 56 calibers long. The U.S. Navy extensively used this anti-aircraft gun which was an Americanized mass-production version of the Swedish Bofors design.
There is 1 known 40mm/56 caliber anti-aircraft gun on display in Wisconsin. It is at the following location:
|City Located||Photo(s)||Gun info||Mount info||Location||GPS||Map(s)|
|Kansasville, WI||twin 40mm||Mk I twin shipboard mount||Veterans Memorial Wayside Park
Durand Ave (Hwy 11) between Sunnyside Dr & Vandenboom Rd
|N 42° 41.304'
W 88° 08.422'
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