View source for 30 mm caliber

{{Short description|Specific size of autocannon ammunition}}
{{More citations needed|date=August 2011}}
[[File:30mmvs556nato.jpg|thumb|Size comparison between 30×170mm and 5.56x45mm NATO]]

The '''30&nbsp;mm caliber''' is a range of [[autocannon]] ammunition. It includes the [[NATO]] [[NATO cartridge|standardized]] Swiss 30×173mm (STANAG 4624), the [[Soviet Union|Soviet]] 30×155mmB, 30×165mm and 30×210mmB, the [[Czechoslovak Socialist Republic|Czechoslovak]] 30×210mm, the [[SFR Yugoslavia|Yugoslav]] 30×192mm, the British 30×113mmB, and the French 30×150mmB and 30×170mm cartridges.

==Usage==
Ammunition in 30&nbsp;mm is typically not used against personnel but rather as an anti-[[materiel]] or [[Armour-piercing|armor-piercing]] round. Rounds of this size can be effective against lightly [[Armored fighting vehicle|armored vehicles]] as well as fortified [[bunker]]s. It is also a popular caliber for shipboard [[close-in weapons system]]s (CIWS), such as the Russian [[AK-630]] and Dutch [[Goalkeeper CIWS]].

The [[Armed Forces of the Russian Federation]] use their 30&nbsp;mm weapons in a variety of vehicles, including the [[Su-25]] attack aircraft, [[Mi-24]] helicopter, [[Mi-28]] attack helicopter, [[Ka-50]] attack helicopter, and the [[BMP-2]], [[BMP-3]], and [[BTR-90]] infantry fighting vehicles. The most modern anti-aircraft gun systems in use by Russia are chambered in 30&nbsp;mm. 

The [[Military of the United States|U.S. military]] uses 30&nbsp;mm weapons in their [[A-10 Thunderbolt II]] ground-attack aircraft, [[AC-130]] gunship (AC-130J Ghostrider variant), and [[AH-64 Apache]] attack helicopter. It was going to be used in the [[Expeditionary Fighting Vehicle]], until the project was canceled. The [[United States Navy]] uses 30&nbsp;mm weapons on the ''San Antonio''-class amphibious transport dock and on {{sclass|Freedom|littoral combat ship|5}} and {{Sclass|Independence|littoral combat ship}}s as part of the surface warfare (SuW) package.<ref>[http://www.seaforces.org/wpnsys/SURFACE/Mk-46-gun-weapon-system.htm Mk-46 GWS] {{Webarchive|url=https://web.archive.org/web/20141102201055/http://www.seaforces.org/wpnsys/SURFACE/Mk-46-gun-weapon-system.htm |date=2 November 2014 }} - Seaforces.org</ref><ref>[http://www.guns.com/2013/03/21/navy-to-contract-with-general-dynamics-for-six-more-littoral-combat-ship-mk46-mod-2-gun-weapon-systems/ Navy Orders Six More General Dynamics Littoral Combat Ship MK46 Mod 2 Gun Weapon Systems] {{Webarchive|url=https://web.archive.org/web/20141102201626/http://www.guns.com/2013/03/21/navy-to-contract-with-general-dynamics-for-six-more-littoral-combat-ship-mk46-mod-2-gun-weapon-systems/ |date=2 November 2014 }} - Guns.com, 21 March 2013</ref> In 2012, the Navy decided to replace the [[Bofors 57 mm L/70 naval artillery gun|Mk 110 57 mm cannons]] on {{sclass|Zumwalt|destroyer|1}}s with the Mk 46 GWS (Gun Weapon System), a navalized mounting of the [[Mk44 Bushmaster II|Mk44 Bushmaster]] chain gun.<ref>[http://news.usni.org/2014/08/05/navy-swaps-anti-swarm-boat-guns-ddg-1000s Navy Swaps Out Anti-Swarm Boat Guns on DDG-1000s] {{Webarchive|url=https://web.archive.org/web/20141031145059/http://news.usni.org/2014/08/05/navy-swaps-anti-swarm-boat-guns-ddg-1000s |date=31 October 2014 }} - News.USNI.org, 5 August 2014</ref><ref>{{Cite web |date=2024-07-10 |title=MK 46 - 30 mm Gun Weapon System > United States Navy > Displayy-FactFiles |url=https://www.navy.mil/Resources/Fact-Files/Display-FactFiles/Article/2220690/mk-46-30-mm-gun-weapon-system/ |access-date=2024-08-02 |archive-url=https://web.archive.org/web/20240710000251/https://www.navy.mil/Resources/Fact-Files/Display-FactFiles/Article/2220690/mk-46-30-mm-gun-weapon-system/ |archive-date=2024-07-10 }}</ref>
In 2022, the [[United States Coast Guard]] announced plans to install 30&nbsp;mm Mk44 chain guns on newly-built [[Polar Security Cutter program|Polar Security Cutters]] (PSCs), though existing cutters would retain their 25mm [[Mark 38 25 mm machine gun system|Mark 38 mounts]].<ref>{{Cite web |last=Ong |first=Peter |date=2022-04-21 |title=USGC's Polar Security Cutters to Receive Mark 38 Mod 4 Guns |url=https://www.navalnews.com/naval-news/2022/04/usgcs-cutters-to-receive-30mm-mark-44/ |archive-url=https://web.archive.org/web/20230130185237/https://www.navalnews.com/naval-news/2022/04/usgcs-cutters-to-receive-30mm-mark-44/ |archive-date=2023-01-30 |access-date=2022-04-24 |website=Naval News |language=en-US}}</ref>

==Types of ammunition==
30 mm weapons are used in a variety of roles. As a result, ammunition in 30&nbsp;mm comes in several varieties: [[Armor-piercing shot and shell|armor-piercing]] (AP), [[high-explosive]] (HE), [[Airburst round|airburst]], and target practice (TP) rounds. Both AP and HE [[Cartridge (weaponry)|cartridge]]s commonly possess [[Incendiary ammunition|incendiary]] or [[Tracer ammunition|tracer]] elements, which may be noted in its designation; API and HE-T are Armor-Piercing Incendiary and High-Explosive Tracer respectively.<ref>{{cite web |title=Medium calibre ammunition |url=https://www.rheinmetall.com/en/products/medium-calibre/medium-calibre-ammunition |website=rheinmetall.com |publisher=Rheinmetall |access-date=26 September 2023}}</ref>

==Weapons==

<gallery class=center mode=nolines widths="" caption="Examples of 30 mm rounds and cannons">
File:30mm-rounds.jpg|Swiss 30×173mm
File:Львівські курсанти опановують броньовану техніку 06.jpg|Soviet 30×165mm
File:30mm DU slug.jpg|The [[Depleted uranium ammunition|DU]] [[Bullet|penetrator]] of a 30×173 mm round used in the GAU-8
File:DEFA_791_cannon_for_the_Dassault_Rafale_fighter.jpg|French 30×150mmB
File:30 mm.jpg|30×113mmB rounds being loaded into an [[Boeing AH-64 Apache|AH-64D Apache Longbow]]
</gallery>

===Current weapons===
{| class="wikitable"
! style="width: 100px;" | Cartridge
! style="width: 100px;" | Weapon
! style="width: 150px;" | Country of origin
! style="width: 150px;" | Designer
! style="width: 150px;" | Type
! style="width: 250px;" | Example platforms
|-
| rowspan="2" | [[30×29mm grenade|30×29mmB]]
| [[AGS-17]]
| {{USSR}}
| [[OKB-16]]
| Automatic grenade launcher
| [[BMD-3]], [[BTR-90]], [[BTR-D]]
|-
| [[AGS-30]]
| {{RUS}}
| KBP Instrument Design Bureau
| Automatic grenade launcher
| [[BTR-T]], [[Tigr (Russian military vehicle)|GAZ-2975 ''Tigr'']], [[M2020 (tank)]]
|-
| rowspan="6" | 30×113mmB
| [[M230]]
| {{USA}}
| Hughes
| Chain gun
| [[Boeing AH-64 Apache]], [[Joint Light Tactical Vehicle#Other variants|JLTV MADIS]], [[Oshkosh M-ATV]], [[Stryker M-SHORAD]]
|-
| [[ADEN cannon|ADEN]]
| {{GBR}}
| Royal Small Arms Factory
| Revolver cannon 
| [[English Electric Lightning]],<br/>[[Hawker Hunter]], [[Saab Draken]], [[SEPECAT Jaguar]]
|-
|[[VENOM LR 30 mm gun|VENOM LR 30]]
|{{GBR}}
|AEI Systems
|Revolver cannon
|Midgard 300 RWS, electro optic systems (EOS) R400 ROWS (prototype)
|-
| [[DEFA cannon|DEFA 550 series]]
| {{FRA}}
| Direction des Études et Fabrications d'Armement
| Revolver cannon
| [[Dassault Mystere]], [[Dassault Mirage|Mirage series]], [[Dassault Etendard|Étendard series]], [[SEPECAT Jaguar]],<br/>[[Fiat G.91]], [[AMX International AMX]]
|-
| [[GIAT 30|30 M 781]]
| {{FRA}}
| [[GIAT]] 
| Chain gun 
| [[Eurocopter Tiger]]
|-
| XM188
| {{USA}}
| [[General Electric]]
| Rotary cannon
| [[Bell AH-1 Cobra]] (prototype)
|-
| 30×150mmB
| [[GIAT 30|30 M 791]]
| {{FRA}}
| [[Nexter]]
| Revolver cannon
| [[Dassault Rafale]]
|-
| 30×155mmB
| [[Nudelman-Rikhter NR-30|NR-30]]
| {{USSR}}
| Nudelman-Rikhter
| Short-recoil autocannon
| [[MiG-19]], [[MiG-21]], [[Su-7]], [[Su-17]], [[Chengdu J-7|J-7]]
|-
| rowspan="9" |30×165mm
| [[GSh-30-1]]
| {{USSR}}
| Gryazev-Shipunov
| Short-recoil autocannon
| [[Sukhoi Su-27]], [[Sukhoi Su-30]], [[Sukhoi Su-35]], [[Sukhoi Su-57]], [[Mikoyan MiG-29]]
|-
| [[GSh-30-2]]
| {{USSR}}
| Gryazev-Shipunov 
| Twin autocannon
| [[Sukhoi Su-25]], [[Mil Mi-24|Mil Mi-24P]]
|-
| [[GSh-6-30]]
| {{USSR}}
| Gryazev-Shipunov
| Rotary cannon
| [[MiG-27]], [[Kashtan CIWS|Kortik CIWS]]
|-
| [[AK-630]]
| {{USSR}}
| TsKIB SOO
| Rotary cannon
| A-213-Vympel-A CIWS
|-
| [[Shipunov 2A42|2A42]]
| {{USSR}}
| KBP Instrument Design Bureau
| Gas-operated autocannon
| [[BMP-2]], [[BMD-2]], [[BMD-3]], [[Kurganets-25]], [[T-15 Armata]], [[Mil Mi-28]], [[Kamov Ka-50]], [[BTR-90]]
|-
| [[Shipunov 2A72|2A72]]
| {{USSR}}
| KBP Instrument Design Bureau
| Long-recoil autocannon
| [[BMP-3]] (also in BRM-3K version), [[BMD-4]], [[BTR-82A]], [[Uran-9]]
|-
| {{ill|2A38|ru|2А38}}
| {{USSR}}
| KBP Instrument Design Bureau
| Twin anti-aircraft gas-operated autocannon
| [[2K22 Tunguska]], [[Pantsir missile system|Pantsir-S]]
|-
| [[CRN 91 Naval Gun|CRN 91]]
| {{IND}}
| Ordnance Factory Medak
| Light naval gun
| ''Trinkat''-class patrol vessel, ''Kumbhir''-class landing ship,<br/>''Car Nicobar''-class fast attack craft
|-
| [[Type 730 CIWS|Type 730/1130]]
| {{CHN}}
| 713th Research Institute
| Gatling gun
| [[Type 052C destroyer]],<br/>[[Type 001A aircraft carrier]], [[Type_730_CIWS#LD-2000|LD-2000]]
|-
| rowspan="7" | 30×170mm
| HS.831A
| {{FR}}
| [[Hispano-Suiza]]
| Gas-unlocked delayed-blowback autocannon
| [[AMX-30#AMX-30 DCA – défense contre avion|AMX-30 DCA]]
|-
| rowspan="4" |[[Oerlikon KCA|KCB]]
| rowspan="3" |{{CHE}}
| rowspan="3" |Oerlikon
| rowspan="5" |Autocanon
|Naval weapon systems:
:[[DS30B rapid fire cannon]]<ref>{{Cite web |last=NavyLookout |date=2021-01-13 |title=The all-rounder – the 30mm Automated Small Calibre Gun in focus {{!}} Navy Lookout |url=https://www.navylookout.com/the-all-rounder-the-30mm-automated-small-calibre-gun-in-focus/ |access-date=2025-06-13 |website=www.navylookout.com |language=en-GB}}</ref>
Destroyers 
:[[Type 45 destroyer|''Type 45'' class]]
Frigates:
:{{sclass|Lekiu|frigate|4}}
Corvettes:
:{{sclass|Bung Tomo|corvette|4}}, {{sclass|Kasturi|corvette|4}}
Patrol vessels:
:{{sclass|Storm|patrol boat
|4}}s <small>([[Lithuanian Naval Force|Lithuania]])</small>
Landing ship:
:{{sclass|Bay|landing ship
|4}}s
Mine-countermeasure vessels:
:{{sclass|Huon|minehunter|4}}s, {{sclass|Hunt |mine countermeasures vessel|4}}s, {{sclass|Sandown|minehunter|4}}s
Support vessels:
:{{sclass|Tide|tanker|4}}, {{sclass|Wave|tanker|4}}
Training ship:
:{{sclass|Gagah Samudera|training ship|4}}
|-
|Naval weapon systems:
:{{ill|Emerlec 30|lt=EE-30 / Emerlec 30 / Mark 74|it|EMERLEC-30}}, a CIWS turret with 2×KCB.<ref>{{Cite web |title=30mm Emerlec EE-30 |url=https://weaponsystems.net/system/1555-30mm+Emerlec+EE-30 |access-date=2025-06-13 |website=Weaponsystems.net |language=en}}</ref>
Destroyers 
:[[Chungbuk-class destroyer|''ChungBuk'' class]]<ref name=":0">{{Cite web |title=The South Korean Navy (ROKN) |url=https://naval-encyclopedia.com/cold-war/south-korean-navy-rokn.php |access-date=2025-06-14 |website=naval encyclopedia |language=en-US}}</ref>
Frigates:
:{{sclass|Ulsan |frigate|4}}<ref name=":0" />
Corvettes:
:{{sclass|Kasturi|corvette|4}} <small>(before replacement),</small> {{sclass|Pohang|corvette|4}}
Patrol vessels:
:{{sclass|Chamsuri|patrol boat|4}} <small>(PKM 201 variant)</small>,<ref name=":0" /> CPIC-X <small>(US Navy, coastal patrol and interdiction craft - experimental)</small>,<ref>{{Cite web |title=30 mm/75 (1.2") EX-74 and Emerlec-30 |url=http://www.navweaps.com/Weapons/WNUS_30mm_Emerlec.php}}</ref> {{sclass|Kagitingan|patrol craft|4}}, ''Kilkuri'' class<ref name=":0" />
Fast missile craft:
:{{sclass|La Combattante III|fast attack craft|4}}s <small>(known as ''Laskos'' class, with this additional weapon for the Greek Navy)</small>, ''Manta'' class <small>(Ecuador, weapon received after modernisation)</small>,<ref>{{Cite web |title=MANTA fast attack craft (1971) |url=https://www.navypedia.org/ships/ecuador/ecu_cf_manta.htm |access-date=2025-06-13 |website=www.navypedia.org}}</ref> [[Patrol Ship Multi-Mission#Republic of Korea Navy|''Paek Ku'' class]]<ref name=":0" />
Mine-countermeasure vessels:
:{{sclass|Lerici |minehunter|4}}s <small>(Nigeria)</small>
|-
|Naval weapon systems:
:[[Oerlikon 30 mm twin cannon|GCM-A]]<ref>{{Cite web |title=30mm Oerlikon GCM-A |url=https://weaponsystems.net/system/1563-30mm+Oerlikon+GCM-A |access-date=2025-06-14 |website=Weaponsystems.net |language=en}}</ref>
Destroyers 
:''[[Type 82 destroyer|Type 82]]'' [[Type 82 destroyer|class]], [[Type 42 destroyer|''Type 42'' class]]
Frigates:
:{{sclass|Type 22|frigate|4}}<ref>{{Cite web |title=30 mm/75 GCM Series |url=http://www.navweaps.com/Weapons/WNBR_30-75_GCM.php}}</ref>
Fast attack craft:
:{{sclass|Waspada|fast attack craft|4}} <small>(before replacement),</small> {{sclass|Pohang|corvette|4}}, ''Damrong Rachanuphat'' class<ref>{{Cite web |title=DAMRONG RACHANUPHAT patrol craft (1969-1972) |url=https://www.navypedia.org/ships/thailand/th_pf_damrongrachanuphat.htm |access-date=2025-06-14 |website=www.navypedia.org}}</ref>
Patrol craft:
:''Mamba'' class <small>(Kenya, after modernisation)</small><ref>{{Cite web |title=MAMBA patrol craft (1974) |url=https://www.navypedia.org/ships/kenya/ken_cf_mamba.htm |access-date=2025-06-14 |website=www.navypedia.org}}</ref>
|-
|{{CHE}} / {{flag|South Korea}}
|[[SNT Dynamics]] (under licence)
|[[K30 Biho|K30 Biho SPAAG]], [[K808 White Tiger|K808  SPAAG]]<ref>{{Cite web |date=2021-12-17 |title=South Korea begins deployment of its new Self-Propelled Anti-Aircraft Gun System |url=https://www.ir-ia.com/news/south-korea-begin-deployment-of-its-new-self-propelled-anti-aircraft-gun-system/ |access-date=2025-06-13 |website=IRIA News |language=en-US}}</ref>
|-
| HS.831L / KCB
| {{CHE}} / {{FR}}
| Hispano-Suiza / Oerlikon
| Falcon anti-aircraft system
|-
| [[RARDEN|L21A1 RARDEN]]
| {{GBR}}
| Royal Armament Research and Development Establishment/<br/>Royal Small Arms Factory, Enfield
| Long-recoil autocannon
| [[FV721 Fox]], [[FV107 Scimitar]],<br/>[[Warrior tracked armoured vehicle|FV510 Warrior]]
|-
| rowspan="12" | 30×173mm (STANAG 4624)
| [[Oerlikon KCA|KCA]]
| {{CHE}}
| Oerlikon
| Revolver cannon
| [[Saab 37 Viggen]]
|-
|[[Oerlikon KCA|KCE]]
|{{CHE}}
|[[Rheinmetall Air Defence]]
|Revolver cannon
|[[Rheinmetall Sea Snake 30 mm|Rheinmetall Sea Snake]] turret, [[Skyranger 30]]
|-
| [[GAU-8 Avenger]]
| {{USA}}
| [[General Electric]]
| Gatling gun
| [[Fairchild Republic A-10 Thunderbolt II]], [[Goalkeeper CIWS|Signaal Goalkeeper CIWS]]
|-
| rowspan="3" |[[Mk44 Bushmaster II]]
| rowspan="3" |{{USA}}
| rowspan="3" |[[Alliant Techsystems]]
| rowspan="3" |Chain gun
|[[Advanced Reconnaissance Vehicle]], [[K21|AS21 Redback]], [[Amphibious Combat Vehicle|BAE ACV-30]], [[Bionix AFV#Production models|Bionix II]], [[Borsuk (infantry fighting vehicle)|Borsuk]], [[Boxer (armoured fighting vehicle)|Boxer Vilkas]], [[CM-32 armoured vehicle|CM-34]], [[CV9030]], {{ill|Dragón VCR|es|Dragón (vehículo blindado)}}, {{ill|ICV - Infantry combat vehicle|lt=ICV|ja|24式装輪装甲戦闘車}}, [[Freccia IFV|Freccia EVO]], [[Hunter AFV]], [[KTO Rosomak]], [[LAV III]](Colombia), [[LAV III|LAV-700]], [[M1296 Dragoon|M1296 Stryker Dragoon]], N-WAV 8×8 IFV, [[Pandur II (8×8)#Czech variants|Pandur II 8×8  KBVP]], [[Patria AMV|Patria AMV - CRO 30L]], [[Pandur II|Pindad Cobra]], [[Mowag Piranha|Piranha III]] (Belgium, Botswana, Ireland), [[Mowag Piranha V|Piranha V]] (Romania), {{ill|RCV - Reconnaissance combat vehicle|lt=RCV|ja|共通戦術装輪車 (偵察戦闘型)}}, [[Terrex ICV|Sentinel II 6×6 and 8×8]], [[VBTP-MR|VBTP-MR Guarani]]
|-
|Naval weapon systems:
:[[30mm DS30M Mark 2 Automated Small Calibre Gun|DS30M Mark 2]]
Aircraft carrier:
:[[Brazilian aircraft carrier Atlântico|''NAM'' ''Atlântico'']]
Amphibious transport docks:
:[[Endurance-class landing platform dock|''Angthong''-class]], {{sclass|San Antonio|amphibious transport dock|4}}
Destroyers 
:[[Type 45 destroyer|''Type 45'' class]], {{sclass|Zumwalt|destroyer|4}}
Frigates:
:{{sclass|Jose Rizal|frigate|4}}s, ''[[Littoral combat ship]]'', [[Second Generation Patrol Vessel|''Maharaja Lela'' class]], {{sclass|Naresuan|frigate|4}}, [[Type 23 frigate|''Type 23'' class]]
Corvettes:
:{{sclass|Gowind|corvette|4}} (Argentina), {{sclass|Khareef|corvette|4}}
Offshore patrol vessels:
:[[Hateruma-class patrol vessel|''Hateruma'' class]], {{sclass|Holland|offshore patrol vessel|4}}, [[List of active Indonesian Navy ships#Patrol fleet|''Mamuju'' class]], [[Polar Security Cutter program|''Polar Security Cutter'']], [[River-class offshore patrol vessel|''River'' class (batch II)]]
Patrol vessels:
:[[Indonesian Maritime Security Agency#Equipment|''Bintang Laut'' class]], [[Hateruma-class patrol vessel|''Hateruma'' class]],  {{sclass|Iwami|patrol vessel|4}}s, [[River-class patrol vessel#Royal Thai Navy|''Krabi'' class]], {{sclass|Kunigami|patrol vessel|4}}s, ''Leamsing'' class, [[List of active Indonesian Navy ships#Patrol fleet|''Mamuju'' class]], [[Pari-class patrol boat|''Pari'' class]], [[Indonesian Maritime Security Agency#Equipment|''Pulau Nipah'' class]], [[Swiftships Model 35PB1208 E-1455|''Swiftships'']], [[Tanjung Datu-class patrol vessel|''Tanjung Datu'' class]], {{sclass|T.991|patrol boat|4}}, ''T.994'' class
Fast-attack craft:
:[[Clurit-class fast attack craft|''Clurit'' class]], [[Shaldag-class patrol boat|''Shaldag Mk.V'' class]]
Mine-countermeasure vessels:
:[[Lerici-class minehunter#Lat Ya class|''Ladya'' class]]
Support vessels:
:{{sclass|Karel Doorman|support ship|4}}
Research vessels:
:[[List of active Indonesian Navy ships#Hydrographic and Oceanographic Research Vessels|''Pollux'' class]]
|-
| Lockheed AC-130J, 
|-
| {{ill|MK 30|de|MK 30}}
| {{DEU}}
| [[Rheinmetall]]
| Automatic cannon
| [[ASCOD]], [[Boxer (armoured fighting vehicle)#Combat Reconnaissance Vehicle (CRV) Reconnaissance variant|Boxer CRV]], [[Boxer (armoured fighting vehicle)#IFV RCT30 (PuBo)|Boxer RadSPz (PuBo)]]''',''' [[Lynx (Rheinmetall armoured fighting vehicle)|Lynx KF41]], [[Mowag Piranha|Piranha III (Spanish Marines)]], [[Puma (IFV)|SPz Puma]], [[30 mm Breda-Mauser|30mm/82 Compact]]
|-
| EMAK 30
| {{ZAF}}
| [[Denel|Denel Land Systems]]
| Linkless cam gun
| [[Patria AMV|Badger]]
|-
| Maadi Griffin
| {{USA}}
| Robert Stewart
| Prototype anti-materiel rifle
| Maadi Griffin
|-
| 30mm X-GUN
| {{ITA}}
| [[Leonardo S.p.A.|Leonardo]]
| Automatic Cannon
|
|-
| Wotan 30
| {{DEU}}
| [[Rheinmetall]]
| Automatic cannon
| [[Lynx (Rheinmetall armoured fighting vehicle)|Lynx KF41]]
|-
| GTS-30/N
| {{SVK}}
| ZŤS – ŠPECIÁL
| Gas-operated autocannon
|[[BOV 8x8 Patria|BOV 8x8 Vydra]]
|-
|30×210mmB
| [[AK-230|NN-30]]
| {{USSR}}
| Tulamashzavod
| Twin revolver cannon 
| AK-230 light naval gun/CIWS
|-
| 30×210mm
| [[M53/59 Praga|vz.53/59]]
| {{flag|Czechoslovakia}}
| Praga Hostivař
| Twin anti-aircraft autocannon
| M53/59 Praga
|-
| 30×250mm caseless
| [[Rheinmetall RMK30|RMK30]]
| {{DEU}}
| [[Mauser]]
| Recoilless revolver cannon
| [[Wiesel AWC]] (experimental),<br/>[[Eurocopter Tiger#Tiger UHT|Eurocopter Tiger UH]] (experimental)
|}

===Historical weapons===

{| class="wikitable"
! style="width: 100px;" | Weapon
! style="width: 150px;" | Country of origin

! style="width: 150px;" | Designer
! style="width: 100px;" | Cartridge
! style="width: 150px;" | Type
! style="width: 250px;" | Example platforms
|-
| [[MK 108]]
| {{flag|Nazi Germany}}
| Rheinmetall-Borsig
| 30×90mmRB 
| Autocannon
| [[Messerschmitt Bf 109|Messerschmitt Bf 109 G-6]], [[Messerschmitt Bf 110|Messerschmitt Bf 110 G-2]],<br/>[[Focke-Wulf Fw 190|Focke-Wulf Fw 190 A-8/R2]], [[Messerschmitt Me 262]]
|-
| [[Type 2 cannon|Type 2]]
| {{flag|Japanese Empire}}
| Dai-Nippon Weapons Co., Ltd.
| 30×92mmRB
| Blowback autocannon
| [[Mitsubishi J2M]] (prototype)
|-
| [[Ho-155 cannon|Ho-155]]
| {{flag|Japanese Empire}}
| Nagoya Arsenal
| 30×114mm
| Autocannon
| [[Nakajima Ki-84|Nakajima Ki-84-I Hei]],<br/>[[Kawasaki Ki-102|Kawasaki Ki-102c Hei]]
|-
| [[Type 5 cannon|Type 5]]
| {{flag|Japanese Empire}}
| Nihon Tokushuko
| 30×122mm
| Autocannon
| [[Yokosuka P1Y]], [[Kyushu J7W]],<br/>[[Mitsubishi J2M]] (planned)
|-
| [[Nudelman-Rikhter NR-30|NR-30]]
| {{flag|Soviet Union}}
| A.E. Nudelman and A.A. Rikhter
| 30×155mmB
| Autocannon
| [[MiG-19]], [[MiG-21]], [[Sukhoi Su-7]],<br/>[[Sukhoi Su-17]]
|-
| [[MK 101]]
| {{flag|Nazi Germany}}
| Rheinmetall-Borsig
| rowspan="2" |30×184mmB
| Autocannon
| [[Henschel Hs 129]],<br/>[[Heinkel He 177|Heinkel He 177A-1/U2]] (experimental)
|-
| [[MK 103]]
| {{flag|Nazi Germany}}
| Rheinmetall-Borsig
| Electrically primed autocannon
| [[Focke-Wulf Fw 190]],<br/>[[Kugelblitz (armoured fighting vehicle)|Flakpanzer IV ''Kugelblitz'']]
|-
| [[3 cm MK 303 Flak|MK 303]]
| {{flag|Nazi Germany}}
| Krieghoff
| 30×210mm
| Anti-aircraft autocannon
| [[Type XXI submarine]]
|}

==See also==
*[[20 mm caliber]]
*[[23 mm caliber]]
*[[25 mm caliber]]
*[[37 mm caliber]]
*[[40 mm grenade]]
*[[Table of handgun and rifle cartridges]]

==References==
{{Reflist}}

==External links==
*[http://www.fas.org/man/dod-101/sys/land/30mm.htm FAS: 30 mm Ammunition]
*[http://www.atk.com/capabilities_defense/cs_as_gs_m230_30mm_cg.asp ATK Products: M230]
*[http://www.atk.com/capabilities_defense/cs_as_gs_m230LF_30mm_cg.asp ATK Products: M230LF]

{{Firearm cartridge calibers}}

[[Category:Large-caliber cartridges]]