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|Ship armament=3 x 5-[[inch]] (127-[[millimeter]]) guns<br/>8 x 40-millimeter guns<br/>8 x 20-millimeter guns<br/>2 x [[depth charge]] tracks ...05:40 hours on 14 April 1945, ''Barataria'' came under fire from Japanese 40- and 90-millimeter guns on [[Cebu Beach]], directly opposite Mactan Island.

|Ship armament=1 × 40 mm gun ...ce (U.S. Army) | Mine Planter Service]]. She was named for the first coast artillery officer killed ([[Hickam Field]], Hawaii on Dec 7, 1941)<ref>http://www.nps

|name= Canon de 138 mm Modèle 1927 |image=[[File:138 mm gun model 1ret.jpg|300px|]]

| name = 20 ItK 40 VKT | image = [[File:20 ITK 40 VKT Maneesi 1.JPG|300px]]

[[Image:2001gun88mmwiki.jpg|thumb|88 mm display at Imperial War Museum Duxford, 2001]] ...nti-aircraft warfare|anti-aircraft]] and [[Anti-tank warfare|anti-tank]] [[artillery]] gun from World War II. They were widely used throughout the war, and coul

...llery]], and [[RBL 12 pounder 8 cwt Armstrong gun|12-pounder (3 inches /76 mm) field guns]]. ...siege gun]], and a [[RBL 7 inch Armstrong gun|110-pounder]] (7 inches /180 mm) heavy gun. The [[Royal Navy]] used all these guns and all except the 20-po

|length= 1016 mm |part_length= 115 mm

...vanced Crew Served Weapon (ACSW)''' was a developmental [[25 mm grenade|25 mm]] belt-fed Grenade Machine Gun with smart shell capability. It is the resul ...r]] and the [[M2 Browning machine gun|M2 heavy machine gun]]. It fires 25 mm point-detonating and [[air burst]] style ammunition, including [[High explo

...by Capt. D.R. Williams, of [[Covington, Kentucky]], who later served as an Artillery Captain with a battery of his design. It was a breech-loading, rapid-fire Approximiatly 40 were made to supply 7 different Confederate batteries. These were made at

| caliber = {{Convert|23|mm|0|abbr=on}} ...lkov-Yartsev VYa-23''' (Волков-Ярцев ВЯ-23) is a {{Convert|23|mm|abbr=on}} [[autocannon]] used on [[Soviet]] aircraft during [[World War II]

|name=Vickers 10 inch /45 naval gun<br> Type 41 10-inch (254 mm) /45-caliber naval gun<br>BL 10 inch Mk VII |caliber={{convert|10|in|mm|0|adj=on}}

| caliber=40 mm The '''[[Vickers]] Class "S"''' was a 40&nbsp;mm (1.57&nbsp;in) [[Autocannon|cannon]] used to arm [[United Kingdom|British]]

|image= [[Image:28 mm AA gun.jpg|300px]] |caption= Quadruple-mount 1.1-inch (28 mm) anti-aircraft cannon aboard the battleship [[USS Pennsylvania (BB 38)]] du

...sian Civil War]]<br>[[Greco-Turkish War]]<br>[[World War II]] ''As coastal artillery'' |caliber={{convert|12|in|mm|sing=on|sigfig=4}}

|caliber= {{convert|14|in|mm|sing=on}} <!-- Artillery specifications -->

|caliber={{convert|149.1|mm|in}} |max_range= {{convert|23000|m|yd}} at 40°

|type=Naval Artillery |caliber= {{convert|16|in|mm|sing=on}}

|length=12 meters (40 feet)<ref name="Campbell"/> <!-- Artillery specifications -->

| cartridge = 37 × 263 mm. B <!-- Artillery specifications -->

<!-- Artillery specifications --> ...erior to the 80-100 rounds per minute of its contemporary, the [[Bofors 40 mm]] anti-aircraft gun. The ''SK C/30U'' gun was modified for use by submarin

<!-- Artillery specifications --> ...|''Taishō'' period]]. This breech block design was also used on Japanese 40 cm (16 inch), 15.5 cm (6 inch), 14 cm (5.5 inch), 12.7 cm (5 inch), and 12

|name=12.8 cm Flak 40 |image=[[Image:German 12.8 cm Flak 40 - static mount.jpg|300px]]

|caliber= {{convert|14|in|mm|sing=on}} <!-- Artillery specifications -->

|name=20 mm modèle F2 gun |caliber=20 mm

|cartridge=[[20 x 138B cartridge|20 × 138 mm. B]] |caliber=20 mm (.79 in)

|caliber= {{convert|3|in|mm|sing=on}} <!-- Artillery specifications -->

|caliber= {{convert|3|in|mm|sing=on|sigfig=4}} <!-- Artillery specifications -->

|name=37 mm automatic air defense gun M1939 (61-K) |caption=61-K in Saint Petersburg Artillery Museum.

|caliber={{convert|380|mm|in}} <!-- Artillery specifications -->

|part_length= {{convert|2114|mm|in}} L/52 |cartridge= 42 × 406 mm. R

| armour=6–13 mm on the hull, 28 mm on the turret | primary_armament=40&nbsp;mm Bofors/60 AA-gun

|name=40 cm/45 Type 94 |caliber=460&nbsp;mm

|name=45&nbsp;mm anti-aircraft gun (21-K) |variants= 40-K, 41-K

...5&nbsp;inches (127&nbsp;mm) in diameter, and the barrel was 25 [[Caliber (artillery)|caliber]]s long (that is, for a 5" bore and a barrel length of 25 calibers ...ly) and had a range of 14,500 yards (13,260 m) at the maximum elevation of 40 degrees.<ref name=C138>Campbell 1985 p.138</ref>

|cartridge= 5 inch (127 mm) <!-- Artillery specifications -->

|cartridge= 5 inch (127 mm) <!-- Artillery specifications -->

|cartridge= 5" (127 mm) <!-- Artillery specifications -->

| caption = 7,62 ItKk/31-40 VKT on M/31 cone mount | variants = 7,62 ItKk/31-40 VKT

|type=[[Naval artillery|Naval gun]] |variants=[[Otobreda 76 mm]]

|name=ARCHER Artillery System |type=[[Self-propelled artillery]]

[[Image:M2Bradley-M242.jpg|thumb|[[M242]] 25&nbsp;mm Bushmaster autocannon on an [[M2 Bradley]]]] [[Image:XM307-01.jpg|thumb|[[XM307]] 25&nbsp;mm caliber 2-man portable autocannon]]

...e Industries]] (UDI) purchased Bofors Weapon Systems from Saab (the tube [[artillery]] interests), while Saab retained the [[missile]] interests. In 2005 BAE Sy *40 mm Tridon

|caliber= {{convert|12|in|mm|sigfig=4}} ...British]] [[Caliber#Caliber_as_measurement_of_length|45-calibres]] [[naval artillery|naval gun]] which was mounted as primary armament on [[battleship]]s and [[

...nel guns in the Second World War|Two guns]] were also mounted as [[coastal artillery]] near [[Dover]]. A total of 78 guns were made. * Bore - 14 inches (356 mm)

|caliber=15&nbsp;in (381&nbsp;mm) <!-- Artillery specifications -->

| caliber = {{convert|18|in|mm}} <!-- Artillery specifications -->

...40 mm grenade]]s in both the low velocity 40x46 mm and high velocity 40x53 mm calibers which uses what it calls [[High-Low System|High-Low Propulsion Sys HE grenades may well be the standard for both types of 40 mm grenades, but over the years the functions of the weapons using these grena

|part_length={{convert|159.2|in|m|sigfig=4}} bore (40 [[Caliber#Caliber_as_measurement_of_length|calibres]])<ref name=Handbook191 |caliber={{convert|4|in|mm|sigfig=4}}

...Mk I - II : {{convert|38|long cwt|kg|sigfig=3}}<br>Mk III - V : {{convert|40|long cwt|kg|sigfig=3}} |part_length={{convert|125|in|mm|sigfig=4}} bore (25 [[Caliber#Caliber as measurement of length|calibres]])<

The '''Berezin B-20''' (Березин Б-20) was a [[20 mm caliber]] [[autocannon]] used by [[Soviet]] aircraft in [[World War II]]. ...e [[ShVAK]] because is was significantly lighter (25 kg (55 lb) vs ShVAK's 40 kg (80 lb)) without sacrificing rate of fire or muzzle velocity.

...r>Mk VII : {{convert|204|in|mm|sigfig=4}}<br>Mk IV & VI : {{convert|237|in|mm|sigfig=4}} bore<ref name=Gunnery1902/> |caliber={{convert|8|in|mm|sing=on|sigfig=4}}

|caliber={{convert|8|in|mm|sing=on|sigfig=3}}<ref name="Campbell"/> <!-- Artillery specifications -->

|part_length={{convert|290|in|mm|sigfig=4}}; (31.5 [[Caliber#Caliber_as_measurement_of_length|calibres]])<re |caliber={{convert|9.2|in|mm|sing=on|sigfig=4}}

|part_length={{convert|368.7|in|mm|}} (40.08 [[Caliber#Caliber as measurement of length|calibres]])<ref name=Gunnery1 |caliber={{convert|9.2|in|mm|sing=on|sigfig=4}}

|caliber={{convert|120|mm|in}} |rate=40/min

|name=Bofors 37 mm anti-tank gun |cartridge=37×249 mm. R

|name= Bofors 40 mm gun |caption= '''Bofors 40 mm/L60'''. This example includes the British-designed ''Stiffkey Sight'', bein

|name=Bofors 57 mm |caption=Bofors 57 mm Mk 1, as mounted on the Swedish Spica-II Class FAC.

|caliber=20 mm <!-- Artillery specifications -->

|caliber= 37 mm (1.457 in) <!-- Artillery specifications -->

|cartridge= 84×246 mm. R |caliber= 84 mm. (3.31 inches)

|caliber=40 mm |barrels=2 × [[Bofors]] [[Bofors 40 mm gun#40 mm L/70|40 mm L/70]]

[[Category:40 mm artillery]]

...oped in the interwar period by [[Stewart Blacker|Lt-Col Blacker]], [[Royal Artillery|RA]]. The spigot mortar was based on early [[infantry]] trench mortars. By *'''Calibre''': 7 in (178 mm)

|caliber=20 mm <!-- Artillery specifications -->

|name=Ho-301 40 mm cannon |image=[[Image:Ho-301 40 mm projectile.jpg|300px]]

[[Image:Hotchkiss gun2.jpg|thumb|A Hotchkiss 42 mm gun.]] ...inch (42&nbsp;mm) light mountain [[gun]]; there was also a 3-inch (76&nbsp;mm) Hotchkiss gun. They were intended to be mounted on a light carriage or pac

|length= 975 mm<ref name="MP">{{cite web|url=http://www15.tok2.com/home/lttom/military-powe |part_length= 454 mm<ref name="MP"/>

! width=12% | [[Caliber]] (mm) | 20 mm || [[Oerlikon 20 mm cannon]] || {{CHE}} || World War II

| armour=6-20 mm | primary_armament=40&nbsp;mm Bofors/60 AA-gun

* [[M240 machine gun|M240/MAG-58]] 7.62 mm machine gun * [[Mk 19 grenade launcher|MK19]] 40 mm [[grenade launcher]]

|primary_armament=[[Bofors 40 mm gun|M2A1 40 mm]] twin anti-aircraft gun |secondary_armament=1 x [[Browning Model 1919 machine gun|M1919A4 7.62 mm machine gun]]

| cartridge = 30x173 mm | caliber = [[30 mm caliber|{{convert|30|mm}} caliber]]

[[Category:40 mm artillery]]

|rate= 40 rpm (Sustained) The '''Mk&nbsp;19 Grenade Launcher''' is an 40&nbsp;mm [[belt (firearm)|belt-fed]] [[automatic firearm|automatic]] [[grenade launc

| cartridge = [[40 mm grenade#40x46mm SR|40x46mm SR]] [[Category:40 mm artillery]]

<!-- Artillery specifications --> * [[M2 Browning machine gun|M2]] 12.7 mm heavy [[machine gun]]

|caliber= 30 mm (1.18 in) ...s quite powerful, but with a relatively low initial velocity, while the 37 mm was lacking in rate of fire and ammunition reserve.

...{lang-ru|Нудельман - Суранов НС-37}}) was a {{convert|37|mm|abbr=on}} aircraft cannon, which replaced the unreliable Shpitalny Sh-37 gu ...medium and heavy tanks' top armour was possible only at high angles (above 40 degrees), which was hard to achieve in battle conditions. For these reasons

|name=Oerlikon 20 mm cannon |caliber=20 mm

|cartridge=40×304 mm. R |caliber=40 mm (1.57 in)

[[Category:40 mm artillery]]

|name= Type 41 3-inch (7.62 cm) 40 calibre gun |caption=Type 41 3-inch (7.62 cm) 40 calibre gun on [[Japanese battleship Mikasa]]

|cartridge= 40 × 158R |caliber= 40 mm (1.575 in)

...[Caliber#Caliber_as_measurement_of_length|cal]])<br>Total {{convert|140|in|mm|sing=on}}<ref name=Hogg&Thurston1972page79/> |caliber=3 inch (76 mm)

|part_length=74.06 inch (1.88 m) bore (40 cal) |caliber={{convert|47|mm|in|sing=on|sigfig=4}}

The '''QF 4.5&nbsp;inch (113&nbsp;mm) gun''' has been the standard medium-calibre gun used by the [[Royal Navy]] ...aval guns, the QF Mk I has an actual calibre of 4.45&nbsp;inches (113&nbsp;mm)<ref>Jane's Ammunition Handbook, 1999-2000 Edition. http://www.janes.com</r

|type=[[Naval gun]]<br>[[Field gun|Medium field gun]]<br>[[Coastal artillery|Coastal defence gun]] ...R_47-40_mk1.htm British 4.7"/40 (12 cm) QF Marks I to IV and Japanese 4.7"/40 (12 cm) Type 41], Navweaps.com. Accessed 7 April 2008.</ref>

|caliber={{convert|120|mm|in|sigfig=3|sing=on}} <!-- Artillery specifications -->

|part_length={{convert|160|in|m|sigfig=4}} bore (40 [[Caliber#Caliber_as_measurement_of_length|calibres]]) |caliber={{convert|4|in|mm|sing=on|sigfig=4}}

|type= [[Naval artillery|Naval gun]]<br>[[Coastal artillery|Coast defence gun]] |part_length={{convert|160|in|m|sigfig=4}} bore (40 [[Caliber#Caliber_as_measurement_of_length|cal]]); {{convert|165.35|in|m|si

|name= QF 6 inch 40 calibre naval gun<br>''Type 41 6-inch (152 mm)/40-caliber'' |caliber={{convert|6|in|mm|sigfig=4}}

|type=[[Naval gun]]<br>[[Coastal artillery|Coast defence gun]]<br>[[Tank gun]] |caliber={{convert|57|mm|in|sing=on|sigfig=4}}

|name= Ordnance RBL 40 pounder gun |image=[[File:RBL 40 pounder Tasmania 1902 AWM A04785 clipped 300px.jpeg]]

|caliber={{convert|7|in|mm|sing=on|sigfig=4}}<ref name=Gunnery1887/> <!-- Artillery specifications -->

|caliber={{convert|10|in|mm|sing=on|sigfig=4}} <!-- Artillery specifications -->

|caliber= {{convert|6.3|in|mm|0}} <!-- Artillery specifications -->

...de by [[Royal Arsenal|Royal Gun Factory]] in 1870, at the Royal Australian Artillery Memorial, Canberra |caliber={{convert|6.3|in|mm|sing=on|sigfig=4}}

...Shpitalny-Vladimirov large-calibre for aircraft") was a [[20 mm caliber|20 mm]] [[autocannon]] used by the [[Soviet Union]] during [[World War II]]. It w ...liber round and serial production was launched. Some months later the 12.7-mm version has been removed from manufacture altogether.<ref>http://www.airpag

...ry armament, by the end of the war, with RPC first appearing on Vickers 40 mm (Pom Pom) 4 and 8 barrel mounts in late 1941.</ref> ...radar added over the open director. With the Mk 4 large aircraft at up to 40,000 yards could be targeted. It had less range against low-flying aircraft,

|caliber=12 in (305 mm) <!-- Artillery specifications -->

|variants= 35x228 mm ...htm "The Red Queen and the Vigilante"]</ref> The system consisted of a 37 mm T250 six-barrel [[Gatling gun]] mounted on a lengthened [[M113 Armored Pers

<!-- Artillery specifications --> The Type 91 [[torpedo]] had 450&nbsp;mm (17-3/4 in) diameter. There were five models of body design and five models

|name=Type 96 25 mm dual purpose gun |cartridge=25×163 mm.

[[File:Typhoon25mm001.jpg|thumb|Typhoon armed with 25 mm gun on [[Shaldag class fast patrol boat]] of the [[Israeli Navy]].]] ...5 [[Radian|mrad]], allowing it to keep the weapon aimed to within 250&nbsp;mm / 9&nbsp;inches on a target 1000 m / 1000 yards away.

...FFFG granulation size. [[Quarter (United States coin)|Coin]] (diameter 24 mm) for comparison.]] ...trate]] substituted for potassium nitrate and proportions may be as low as 40% nitrate, 30% charcoal, and 30% sulfur.<ref>Julian S. Hatcher, ''Hatcher's