The 152mm 45 caliber Mod.1892 is a Russian 152mm naval gun from the turn of the 19th and 20th centuries, the interwar period and both world wars. The weapon was developed between 1891 and 1897, and entered service in the Russian Navy in 1897. It was used by many Russian units, including the armored cruiser Admiral Kornilov or battleships of the Borodino class (Borodino, Emperor Alexander III, Kniaz Suvorov, Orzeł and Sława). The production of the 152mm 45 caliber Mod.1892 cannon was the responsibility of, among others, the Obukhovsky Works in Saint Petersburg. The total weight of the gun was about 6 tons, and its barrel was 5.3 meters. The cannon fired projectiles weighing about 41 kilograms. Their initial speed was up to 792 m / s. The range of the maximum shot was approximately 15,500 meters. The gun on display was in fact a license and a slightly modernized version of the French 152mm Canet 152/45 fast-firing sea gun. Theoretically, the cannon could achieve a rate of fire of 15 rounds per minute, but in practice, the result of the Russian thug was 2-7 rounds per minute.
The 12-inch 40-inch is a Russian 305 mm naval gun from the turn of the 19th and 20th centuries and World War I. The weapon was developed between 1891 and 1895, and entered service in the Russian Navy in 1896. She was armed with a total of 17 battleships, including ships such as Sisoj Wielikij and Borodino-class ships (Borodino, Imperator Alexander III, Kniaź Suvorov, Orzeł and Sława). The Obukhovsky Plant in Saint Petersburg was responsible for the development and production of the 305 mm 12-inch 40-inch gun. The total weight of the gun was about 42-44 tons, and the total length of the gun was 12.19 meters. At the end of the 1880s, the Russian Admiralty acquired the German 305mm Krupp guns. However, the unsatisfactory parameters of this weapon led to their modification, which resulted in the 12-inch 40-inch cannon. Interestingly, even despite the Russian-French alliance being formed and the acquisition or purchase of the production department of the French Canet and Schneider plants, the Russian admiralty did not withdraw from using the above-mentioned department. The downside of the guns, or rather their turrets, was a slight elevation angle, not exceeding 15 degrees.