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Despite superficially appearing to be inferior based on a simple comparison of round diameters, when firing conventional ammunition the smaller, 4.5 inch Mark 8 naval gun is comparable to the standard 155 mm (6.1 in) gun-howitzer of the British Army. The standard shell from a 4.5 inch Mark 8 naval gun has the same, if not better, range.
102 mm (4.0 in) BL 4 inch Mk VIII & XI 40-caliber United Kingdom: World War I - World War II 102 mm (4.0 in) BL 4 inch Mk IX naval gun 45-caliber United Kingdom: World War I - World War II 102 mm (4.0 in) QF 4 inch Mk I - III 40-caliber United Kingdom: 1895 - World War I 102 mm (4.0 in) QF 4 inch Mk IV, XII, XXII 40-caliber United Kingdom
Originally in 1945, the divisions were based on the ring inside diameter in steps of 1 ⁄ 64 inch (0.40 mm). [6] However, in 1987 BSI updated the standard to the metric system so that one alphabetical size division equals 1.25 mm of circumferential length. For a baseline, ring size C has a circumference of 40 mm. [7]
The Canon de 155 Grande Puissance Filloux (GPF) modèle 1917 was a WWI-era French-designed 155 mm gun used by the French Army and the United States Army during the first half of the 20th century in towed and self-propelled mountings.
The 46 cm (18.1 in) 46 cm/45 Type 94 naval rifle was a wire-wound gun.Mounted in three 3-gun turrets (nine per ship), they served as the main armament of the two Yamato-class battleships that were in service with the Imperial Japanese Navy during World War II.
The M198 155 mm howitzer weighs less than 16,000 pounds (7,300 kg), allowing it to be dropped by parachute or transported by a CH-53E Super Stallion or CH-47 Chinook. The M198 is towed by a 5-short-ton (4.5 t; 4.5-long-ton) truck that is used to carry the nine person crew with supplies and ammunition; it is transported tail first.
The BL 6-inch gun Mark VII (and the related Mk VIII) [h] was a British naval gun dating from 1899, which was mounted on a heavy travelling carriage in 1915 for British Army service to become one of the main heavy field guns in the First World War, and also served as one of the main coast defence guns throughout the British Empire until the 1950s.
The PGK is compatible with various 155 mm artillery stockpiles to reduce dispersion. It was demonstrated on German DM111 shells in September 2014 fired from a PzH2000 self-propelled howitzer. From a distance of 27 km (17 mi), 90 percent of the PGK-equipped German shells landed within 5 meters of the target.