B-4 is a Soviet howitzer of the big capacity of calibre of 203,4 mm (8 inches). The full official name of the tool — 203-mm a howitzer of the sample of 1931. During the Soviet-Finnish war it is the tool it was used for Linii Mannergejma destruction — especially powerful strengthenings. It was actively and successfully used in the Great Patriotic War, thanks to capacity, excellent ballistics of 1-12 variable charges and a corner of an eminence 60 ° the choice of an optimum trajectory for defeat of the various purposes was provided. 203-mm the howitzer of 1931 has justified all hopes rested on it. It was successfully used both at break of the strengthened strips, and at storm of fortresses and in street fights in big cities, and after its termination long consisted on arms of the Soviet Army both in a towed variant, and on a self-propelled gun carriage. The given howitzer is established as a monument to gunners in the city of Kolomna of Moscow Region.(I saw this gun)
