Since 20mm is the cutoff point where most nations switch from bullets to shells, it has come to also generally be the cutoff point between weapons classified as a machine gun or a cannon. This can vary, however: for example, in WWII, Japan classified any weapon over 11mm as a cannon; thus, in Japanese records, their 12.7mm Ho-103 aircraft gun is classified as an autocannon, as it used explosive shells to overcome its lower muzzle velocity compared to American 12.7mm/.50BMG weapons). A machine gun does not fire shells, so historically a weapon that fires shells below 20mm can be a cannon. A true definition will always mention whether the weapon fires bullets or shells in addition to its caliber.
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| - Since 20mm is the cutoff point where most nations switch from bullets to shells, it has come to also generally be the cutoff point between weapons classified as a machine gun or a cannon. This can vary, however: for example, in WWII, Japan classified any weapon over 11mm as a cannon; thus, in Japanese records, their 12.7mm Ho-103 aircraft gun is classified as an autocannon, as it used explosive shells to overcome its lower muzzle velocity compared to American 12.7mm/.50BMG weapons). A machine gun does not fire shells, so historically a weapon that fires shells below 20mm can be a cannon. A true definition will always mention whether the weapon fires bullets or shells in addition to its caliber.
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dcterms:subject
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dbkwik:battlefield...iPageUsesTemplate
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Slot
| - * Primary Weapon
* Secondary Weapon
- * Primary weapon
* Gunner weapon
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Type
| - • Attack Helicopter
- • Mobile Anti-Air
- • Stealth Jet
- * Airship
* Armored Train
* Attack Plane
* Bomber
* Heavy Tank
* Light Tank
* Torpedo Boat
- • Jet Fighter
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Vehicle
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Cost
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feature
| - * Fully automatic Gatling cannon
* Anti-Infantry
*Anti-vehicle
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Magazine
| - * 15 rounds
* Unlimited
- * 30 rounds
* Unlimited
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abstract
| - Since 20mm is the cutoff point where most nations switch from bullets to shells, it has come to also generally be the cutoff point between weapons classified as a machine gun or a cannon. This can vary, however: for example, in WWII, Japan classified any weapon over 11mm as a cannon; thus, in Japanese records, their 12.7mm Ho-103 aircraft gun is classified as an autocannon, as it used explosive shells to overcome its lower muzzle velocity compared to American 12.7mm/.50BMG weapons). A machine gun does not fire shells, so historically a weapon that fires shells below 20mm can be a cannon. A true definition will always mention whether the weapon fires bullets or shells in addition to its caliber. A very small number of anti-tank rifles have been produced in 20 mm and larger calibers. Many but not all 20 mm rounds have an explosive filling and detonating fuze.
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is Weapon
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