The 8"/55 caliber gun (spoken "eight-inch-fifty-five-caliber") formed the main battery of United States Navy heavy cruisers and two early aircraft carriers.

The M55 is an American fully enclosed and armored self-propelled howitzer based on the M53 155 mm self-propelled gun and with components taken from the M47 Patton. It has a 203.2 mm (eight-inch) howitzer which can traverse 30° left or right, carrying 10 rounds of ammunition when fully combat loaded.

The Rheinmetall Rh-120 is a 120 mm smoothbore tank gun designed and produced in former West Germany by the Rheinmetall Waffe Munition GmbH company. It was developed in response to Soviet advances in armour technology and development of new armoured threats.

With automatic shell handling and loading, a fire rate three times greater than that of previous 8" (20.3 cm) guns and coupled together with the use of "super-heavy" AP projectiles, these weapons made the Des Moines (CA-134) class the most powerful heavy cruisers ever built.

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8"/55 (20.3 cm) Mark 71 on USS Hull DD-945. USN photograph courtesy of Leo Fischer. After the retirement of the last of the World War II Baltimore and Cleveland class cruisers in the 1970s, the only ship-based shore-bombardment weapon remaining in the USN was the 5"/54 (12.7 cm) gun.

This range table applies to those cruisers rearmed with the 8"/55 (20.3 cm) Mark 14 guns.

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The M53 155 mm self propelled gun was designed to procure long-range fire support to allied positions while keeping pace with mechanized formations cross-country. It was adopted in 1952 for both the Army and Marine Corps, all made by Pacific Car & Foundry Company.

In this article, we provide a detailed analysis of the current market prices and trends for the MARLIN MODEL 55. We've gathered data on new and used prices, fluctuations over the past year, and demand trends to help you make an informed decision when purchasing or …