2M-3 (25 mm)

2M-3 on MPK Pr.201K

Description

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

• Blagorodnyy
• MPK Pr.201K
• MPK Pr.201M
• Pr.183
• Pr.183 BM-21
• Pr.206-M
• Pr.1204 late
• Rosomacha
• Smelyi

General info

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Available ammunition

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Comparison with analogues

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Usage in battles

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Pros and cons

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Pros:

Cons:

History

The 2M-3 is a naval gun turret of Soviet origin, developed shortly after World War 2 to arm various smaller combat ships, submarines and civilian ships supporting the navy, and based upon the 84-KM which was designed in 1943-44. The specifications for a new weapon were first developed in 1945 and then modified in 1947. Trials started in 1949 and the gun was accepted into service in 1953 as 110-PM. Manufacturing in the USSR continued until 1984.

These guns were fed from 65-round belts and the early guns could also be fed by 7-round clips. The twin mount on which these guns were originally used was designated as 2M-3. At a later date, the mount was modified into 2M-3M version. In this later version, the automatics were converted to gas-operation and the firing rate was increased to 470 - 480 rounds per minute during trials. These guns were nominally rated as being air-cooled, but they were actually cooled with water from a special hose for at least 15 seconds during reloading.

At the same time as the 2M-3 mounting was being developed for surface ships, the 2M-8 wet mount was being developed for submarines. This mounting used the same 110-PM guns as did the 2M-3 but the guns were clip-fed instead of belt-fed. This version was accepted into service in 1954, but all guns were removed from submarines by the end of 1950s due to the changing nature of submarine warfare. The guns were kept in storage for a long time afterwards but were eventually scrapped.

In addition to the above mountings there were also several experimental mountings which did not enter service. The 2M-10 mount was an improved 2M-8 mount for submarines, but was not accepted into service. In parallel with 2M-3 mount, there was also a BL-130 mount under development. While the BL-130 had some advantages over the 2M-3 mounts, it was at a lower stage of readiness and rather then complete development it was decided to use the 2M-3 mount in its place. At the end of 1940, BL-120-I and BL-120-II mountings intended for the Stalingrad (Project 82) class battlecruisers were being designed. These were completely enclosed armored mounts. However, these ships were cancelled and the only two mounts completed (renamed 4M-120-I and 4M-120-II) were installed on the destroyer Neustrashimy (Project 41) for several years, until later replaced with 45 mm SM-20-ZIF mounts.

Media

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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.

USSR naval cannons
20 mm	ShVAK
25 mm	2M-3
30 mm	AK-230 · 30 mm/54 AK-630 · 30 mm/54 AK-630M · BP "Plamya"
37 mm	37 mm/67 70-K · V-11
45 mm	45 mm/46 21-K · 45 mm/68 21-KM · 45 mm/89 SM-20-ZIF · 45 mm/89 SM-21-ZIF
57 mm	AK-725
75 mm	75 mm/50 Canet patt.1892
76 mm	34-K · 39-K · 76 mm/60 AK-176M · AK-726 · D-56TS · F-34 · Lender AA gun, pattern 1914/15
85 mm	85 mm/52 92-K · 85 mm/54.6 ZIS-C-53 · 90-K
100 mm	100 mm/56 B-34 · 100 mm/70 SM-5-1 · Minizini
102 mm	Pattern 1911
120 mm	120 mm/50 pattern 1905
130 mm	130 mm/55 pattern 1913 · 130 mm/58 SM-2-1 · B-13
152 mm	152 mm/57 B-38
180 mm	180 mm/57 B-1-P · 180 mm/60 B-1-K
305 mm	12-inch/52 pattern 1907 · 305 mm/54 B-50
356 mm	14-inch/52 pattern 1913 (356 mm)
	Foreign:
40 mm	2pdr QF Mk.IIc (Britain) · Skoda (Czechoslovakia)
47 mm	3 pdr QF Hotchkiss (Britain)
76 mm	76 mm/40 Ansaldo mod.1917 (Italy)
88 mm	SK C/30 (Germany)
120 mm	120 mm/50 Mk.4 Bofors M1924 (Sweden) · 120 mm/50 O.T.O. Mod.1933 (Italy)
152 mm	152/53 mm O.T.O. Mod.1929 (Italy)
320 mm	320 mm/44 Ansaldo model 1934 (Italy)