15 cm sFH 13
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The 15 cm schwere Feldhaubitze 13, was a heavy field howitzer used by Germany in World War I and the beginning of World War II. Wikipedia
Caliber: 149.1 mm (5.89 in)
Effective firing range: 8,900 m (9,700 yd)
In service: 1913–1945
Length: 2.54 m (8 ft 4 in)
Rate of fire: 3 rpm
Shell: 149.1 x 112. 5 mmR separate-loading, cased charge (7 charges)
Used by: German Empire; Ottoman Empire; Belgium; Netherlands; Latvia; Nazi Germany; Romania