8 inch/50 Mark VIII (203 mm)

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Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.

Vehicles equipped with this weapon

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

Available ammunition

Penetration statistics
Ammunition Type of
Penetration @ 0° Angle of Attack (mm)
1,000 m 2,500 m 5,000 m 7,500 m 10,000 m 15,000 m
HE HE 62 62 62 62 62 62
Mark I.B. SAPCBC SAPCBC 274 248 209 178 153 119
Shell details
Ammunition Type of
mass (kg)
Fuse delay
Fuse sensitivity
Explosive mass
(TNT equivalent) (kg)
0% 50% 100%
HE HE 855 116.1 0 0.1 10 79° 80° 81°
Mark I.B. SAPCBC SAPCBC 855 116.1 0.025 9 5.2 48° 63° 71°

Comparison with analogues

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Usage in battles

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Pros and cons

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After World War I, the five major nations of the Allied Powers (the United States, United Kingdom, Japan, France, and Italy) agreed to put an end to the naval arms race that had occurred over the last 20 years. Codified in the Washington Naval Treaty in 1922, the five nations agreed to restrictions on new naval ships specifically defined as heavy cruisers by their 8-inch gun armament. The 8-inch/50 Mark VIII was designed to satisfy the restrictions of the Washington Naval Treaty. Originally constructed with an inner A tube, wire, B tube, and overlapping jacket, only half of these wire-wound built-up guns were actually given the inner A tube. The Mark VIII* was later created by relining all the guns with the inner A tube while the Mark VIII** was made without the wires like the original prototypes. The early guns were mounted in turrets intended to give high elevation angles to allow them to serve as dual-purpose guns; however, the mounts were problematic with the training and elevation gears being too slow to serve in this role. In total, 196 guns were built. The first class of heavy cruisers constructed to use these guns and satisfy the restrictions of the treaty were the County class ordered in 1924 which were armed with 8 of these guns in twin mounts of the more reliable Mark II type. However, due to budget cuts after the war, the class was actually divided into three sub-types. The Kent class was the original class ordered but it was followed by the London class and the Norfolk class with slight differences to hull and superstructure. Despite the improvements of the Mark II mounts for these 8-inch guns, the issues were not fully ironed out as there were still complaints about the mountings and torpedoes on HMS London as late as 1938. The only other class to use these 8-inch guns was the York class which used triple turrets, but, due to being smaller than their County-class predecessors, had only 6 guns. Another six guns were used during World War II to serve as coastal defense guns in the Dover-Folkstone area.


Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

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  • reference to the article about the variant of the cannon/machine gun;
  • references to approximate analogues by other nations and research trees.

External links

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  • topic on the official game forum;
  • other literature.

Britain naval cannons
20 mm  20 mm/70 Oerlikon Mk.II · 20 mm/70 Oerlikon Mark V · 20 mm/70 Oerlikon Mark 24
40 mm  2pdr QF Mk.IIc · 2pdr QF Mk.VIII · 2pdr Rolls Royce · QF Mark V · QF Mark VII · QF STAAG Mark II
47 mm  3 pdr QF Hotchkiss
57 mm  6pdr 7cwt QF Mk IIA · 6pdr QF Mk.V
76 mm  3 inch 12pdr 12 cwt QF Mk.V · 3 inch/70 Mark 6 · 76 mm/45 QF 3in 20cwt HA Mark I · 76 mm/50 12pdr 18cwt QF Mark I · OQF 3in 20cwt
102 mm  4 inch/40 QF mark III · 4 in QF Mark V · 4 inch/45 Mark XVI · 4 inch/50 BL Mark VII · BL Mark IX
114 mm  4.5 inch/45 QF Mark IV · 4.5 inch/45 QF Mark V · 8cwt QF Mk I
120 mm  4.7 inch/45 Mk.XII
133 mm  5.25 inch/50 QF Mark I
152 mm  6 inch/45 BL Mark VII · 6 inch/45 BL Mark XII · 6 inch/50 BL Mark XXIII · 6 inch/50 QF Mark N5
190 mm  7.5 inch/45 BL Mk.VI
203 mm  8 inch/50 Mark VIII
305 mm  305 mm/45 Mark X · 12 inch/50 Mark XI
343 mm  13.5 inch/45 Mark 5(H) · 13.5 inch/45 Mark 5(L)
381 mm  15 inch/42 BL Mark I
20 mm  Rh202 (Germany)
40 mm  Bofors L/60 Mark 2 (USA) · Bofors L/60 Mark 3 (USA)
76 mm  3 inch Mk.33 (USA) · 76 mm/62 OTO-Melara Compact (Italy)