203 mm howitzer M1931 (B-4) (Russian: 203-мм гаубица обр. 1931 г. (Б-4), GRAU index: 52-G-625) was a 203 mm (8 inch) Soviet high-power heavy howitzer. During the Second World War, it was under the command of the Stavka 's strategic reserve. It was nicknamed "Stalin's sledgehammer" by German soldiers.

203毫米榴弹炮M1931（B-4）是一款203毫米（8英寸）的苏联重型榴弹炮。 在第二次世界大战期间，它是在斯塔夫卡的战略储备的指挥下。 它被德国士兵称之为“斯大林的大锤”（机翻,斯大林之锤）。 该炮主要用于对重型德国防御工事轰击和城市作战，用于破坏建筑物和掩体。 这种武器一直被用到柏林战役的战争结束前，苏联红军将B-4放到较宽广的地方，且距离前线300m左右进行直瞄炮击，用203mm的炮弹摧毁德军掩体工事。 1944年春天，一辆KV-1S坦克底盘被用来当做自 …

B-4型M1931式203毫米重型榴弹炮可以说是苏联红军使用过的外形最为怪异的一种 重型火炮，该炮由位于列宁格勒的波尔舍维克兵工厂制造，在二战期间，该炮在对付混凝土加固的重型碉堡中发挥了至关重要的作用，所以在 哈尔科夫 、柴科斯基、柯尼斯堡、但泽以及进攻柏林的途中， 苏军 一直都装备着该炮。 该炮由F.F.棱德岩尔、N.I.马格达斯夫和A.G.加夫里利夫等人设计，由位于列宁格勒的布尔什维克兵工厂制造。 B-4榴弹炮具有良好的 弹道 性能和较高的射击精度，总重 …

2021年9月13日 · The 203-mm howitzer M1931 (B-4) has a relatively short tube, only 25 calibers long. It has a hydraulic recoil buffer, a hydropneumatic recuperator, and a screw-type breechblock, and fires...

Soviet 203mm B-4M howitzer on display in firing configuration with wheels raised off the ground. The B-4M is an early Cold War era heavy towed howitzer of Soviet origin. It is a refurbished and modernized variant of the World War 2 era B-4 howitzer. …

The 203mm M-1931 tracked howitzer, better known as the B-4, was part of the Red Army’s heavy artillery under the direct command of the Stavka Strategic Reserve, the Soviet general staff. Its fearsome 8-inch shell was capable of destroying virtually everything it hit, from reinforced concrete fortifications to large buildings.

2022年4月8日 · Detailing the technical specifications, development, and operational history of the B-4 (Model 1931) 203mm Self-Propelled Heavy Howitzer / Towed Artillery including pictures.

The B-4 fires heavy 203mm shells with enormous explosive power. The maximum range is a modest 18 km due to its relatively short barrel. The rate of fire is rather limited at one round every 1 or 2 minutes.

The 203mm B-4 was a heavy howitzer which was mounted on the same tracked chassis as the 152mm Br-2. Like the Br-2 it could be moved in one piece but only over short distances and had to have the barrel removed to allow for movement in two parts over long distances.

The 203 mm Howitzer M1931 (B-4) field guns were designed by Nikolai Nikititsch Magdesiew in 1931, and production began in 1932. These heavy howitzers were mounted on tracked carriages for towing.