21 cm RK L/22
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The 21 cm RK L/22 was a 21 cm caliber Krupp gun that was purposefully designed to use a combination of prismatic gunpowder, a built-up gun barrel, and the Krupp cylindroprismatic sliding breech with b
Turkish 21 cm RK L/22 in Preveza, Greece
stereogram of Krupp guns displayed at the Vienna exhibition in 1873. The 21 cm RK L/22 is third from the right
Western fort Świnoujście
21 cm RK L/19
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The 21 cm RK L/19 was the later name of a rifled breech loader gun of the Prussian Navy. This gun started with a massive gun barrel, cast from steel in one piece. In 1868 a built-up gun barrel version
21 cm RK L/22
…was testing a Mantel Ring Kanone of 21 cm with use of a 26 kg charge for a speed of 470 m/s. SMS Friedrich Carl (1867) would get 2 21 cm RK L/22 and 14 21 cm RK L/19 SMS Kronprinz (1867) would get 2 21 cm RK L/22 and 14 21 cm RK L/19…
Krupp 21 cm RK L/19 gun on a broadside carriage
21 cm RK L/19 in 1869