View source for 3-inch Mark 10 (76 mm)

[[File:3-inch Mark 10 (76 mm).jpg|thumb|x250px|'''3-inch Mark 10''' on [[PC-451]]]]
== 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.'' -->
'''3-inch Mark 10''' is an American anti-air gun with a good muzzle velocity, an excellent selection of rounds, and a very good killing potential against motor torpedo boats and aircraft alike.

It was originally introduced in 1914 to the US Navy and its modernised derivatives remain in use to this day in the Spanish Navy. The gun seen an extremely wide use, including coastal patrol vessels, submarines, cruisers, battleships, carriers and even merchant ships.

=== Vehicles equipped with this weapon ===
<!-- ''List out vehicles that are equipped with the weapon.'' -->

* {{Specs-Link|jp_yuri_class_asagao}}
* {{Specs-Link|us_pc_466_carmi}}
* {{Specs-Link|us_lcs_l_3}}
* {{Specs-Link|us_pc_451}}
* {{Specs-Link|us_admirable_class}}
* {{Specs-Link|us_cruiser_omaha_class_detroit}}
* {{Specs-Link|us_frigate_tacoma}}
* {{Specs-Link|us_cruiser_omaha_class_raleigh}}
* {{Specs-Link|us_cruiser_omaha_class_trenton}}

== General info ==
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''

=== Available ammunition ===
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3-inch Mark 10 features an excellent choice of ammunition, which includes HE, proximity-fuse HE-VT and a dedicated armour-piercing round.
* HC Mk.27 - best used against torpedo boats, but it will also destroy any aircraft with a single hit, and it's the round of choice when trying to disable anti-air guns on bluewater vessels (however ill-advised it might be).
* AP Mk.29 - dedicated armour-piercing round with a very good penetration for the calibre, it's best used to [[Ammo racks|ammo-rack]] enemy vessels. The round will travel 8 meters after fusing, making it extremely prone to overpenetration when used against Motor Torpedo Boats, so for such a small targets HE ammunition is generally a better choice, unless you face them head-on.
* AA Mk.31 - One of the best anti-air rounds in this calibre range, primarily thanks to its proximity fuse. Below 548 meters, it will work like a regular HE round, making it possible to load these rounds instead of the HC Mk.27 and still effectively engage coastal vessels, even if the explosive filler is {{#expr: 100 - (0.3528 / 0.500 * 100) round 0}}% smaller than in the dedicated HE shell.
{{:{{PAGENAME}}/Ammunition|76 mm HC Mk.27, 76 mm AP Mk.29, 76 mm AA Mk.31}}

=== Comparison with analogues ===
<!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' -->
Compared to its peers, 3-inch Mark 10 is overall an average gun. The biggest downside is its horizontal targeting speed, while the biggest upside is the selection of the shells for the gun.
====HE====
{{Naval 76mm HE}}
====AP / SAP====
{{Naval 76mm AP}}

== Usage in battles ==
[[File:3-inch Mark 10 (76 mm) shooting.jpg|thumb|3-inch Mark 10 engaging enemy vessel]]
<!-- ''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.'' -->
The designated role for the 3-inch Mark 10 is anti-air, and thanks to the excellent vertical guidance along with access to the HE-VT shells and a good rate of fire it can fulfil that role very competently. When controlled by AI the guns will engage enemy planes at a very considerable distance, making it possible to score kills long before your vessel gets in any danger.

But the gun is also widely used as a primary weapon on coastal vessels, where it's role is to engage enemy boats. And here it remains relatively competent, owning it to an acceptable rate of fire while having a good explosive filler. Rounds are not large enough to sking enemy vessels with a single hit, but they will do very considerable damage.

=== Pros and cons ===
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'''Pros:'''
* Access to {{Annotation|HE-VT|High-explosive variable time fuse}} shells
* Good penetration of the {{Annotation|AP|Armour-piercing}} shells

'''Cons:'''
* Very slow targeting speed compared to its peers

== History ==
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The 3"/50 Mark 10 was a successor to the Mark 6, introduced in 1915 as an anti-aircraft gun, but also considered dual-purpose. Before the adoption of the variable-time fuse, the gun was considered ineffective, as the gun lacked stopping power against surface combatant, and with the manual guidance and loading it lacked rate of fire and precision in the anti-aircraft role. The advent of HE-VT shells and a new Mark 51 director system made it relevant again.

The gun seen a whole series of upgrades during the interwar period, WW2 and into the Cold War.

== Media ==
''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.'' -->
* [[3 inch Mk.33 (76 mm)]]
* [[3-inch Mk.34 (76 mm)]]

== External links ==
<!-- ''Paste links to sources and external resources, such as:''
* ''topic on the official game forum;''
* ''other literature.'' -->

* [http://www.navweaps.com/Weapons/WNUS_3-50_mk10-22.php <nowiki>[NavWeaps]</nowiki> 3"/50 (7.62 cm) Mark 10, 17, 18, 19, 20, 21 and 22]
* [[wikipedia:3-inch/50-caliber gun|[Wikipedia] 3-inch/50-caliber gun]]


{{USA naval cannons}}
{{Japan naval cannons}}

[[Category:Naval cannons]]