8.8 cm Pak 43
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The Pak 43 was a German 88 mm anti-tank gun developed by Krupp in competition with the Rheinmetall 8.8 cm Flak 41 anti-aircraft gun and used during World War II. Wikipedia
Barrel length: 628 cm (20 ft 7 in) bore (71 calibres) Pak 43
Breech: Semi-automatic vertical sliding-block
Caliber: 88 mm (3.46 in)
Carriage: Cruciform mount Pak 43; Split trail Pak 43/41
Elevation: -8° to +40° Pak 43; -5° to +38° Pak 43/41
In service: 1943–1945
Manufacturer: Krupp; Rheinmetall-Borsig; Henschel & Son