Zvezda 1/35 Military M1931 (B-4) 203mm Howitzer WWIIThe Soviet B 4 high power heavy howitzer with a calibre of 203. 2 mm (8 in) was developed in 1931. The howitzer could fire shells weighing more than 100 kg at a range of almost 18 km. The weight of the gun was 19 t in transport position. A special caterpillar carriage was developed a large tracked bearing surface prevented the howitzer from sinking into the ground, and the strong carriage withstood the powerful recoil when firing. The first combat use