57 mm kanon M/89B
The 57 mm kanon M/89B was a Swedish naval gun deployed aboard early destroyers as their secondary armament.
The M89 gun had a shorter 45-caliber barrel that gave the gun a muzzle velocity of and a weight of.
The 57 mm kanon M/89B was a Swedish naval gun deployed aboard early destroyers as their secondary armament.
The M89 gun had a shorter 45-caliber barrel that gave the gun a muzzle velocity of and a weight of.