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	{{InfoBoxWeapon		{{InfoBoxWeapon
	| image = [[File:Autocannon.jpg|191px]]		| image = [[File:Autocannon.jpg|191px]]
−	| name = Autocannon/20	+	| name = AC/20
−	| Type = ballistic (direct fire)	+	| Type = Ballistic (Direct Fire)
−	| Tech Base = [[Inner Sphere]]	+	| Tech Base = Inner Sphere (IS)
−	| Year Availability = [[2490]] ([[Lyran Commonwealth|LC]])<ref name="IOp118">''Interstellar Operations'', p. 118: "Prototype Dates For Basic Weapons Table"</ref>	+	| Year Availability = [[2500]] (LC)
−	| Heat = 7<ref name="TMp207+"/>	+	| Heat = 7
−	| Damage = 20<ref name="TMp207+"/>	+	| Damage = 20
	| Minimum Range = N/A		| Minimum Range = N/A
−	| Short Range = 1-3<ref name="TMp207+"/>	+	| Short Range = 1-3
−	| Medium Range = 4-6<ref name="TMp207+"/>	+	| Medium Range = 4-6
−	| Long Range = 7-9<ref name="TMp207+"/>	+	| Long Range = 7-9
−	| Tons = 14<ref name="TMp207+"/>	+	| Tons = 14
	| Critical Slots = 10		| Critical Slots = 10
−	| Ammo Per Ton = 5<ref name="TMp207+"/>	+	| Ammo Per Ton = 5
−	| Cost (unloaded) = 300,000 [[C-bill]]s	+	| Cost (unloaded) = 300,000
−	| Ammo Cost (per ton) = 10,000 C-bills	+	| Ammo Cost (per ton) = 10,000
	| BV (1.0) = 178		| BV (1.0) = 178
−	| BV (2.0) = 178<ref name="TMp317">''TechManual'', p. 317, "Inner Sphere Weapons and Equipment BV Table"</ref><br> 22 (Ammo)<ref name="TMp317"/>	+	| BV (2.0) = 178
	}}		}}
−	== Description ==	+	==Description==
−	The '''autocannon/20''' was a direct-fire ballistic weapon, firing HEAP (''H''igh-''E''xplosive ''A''rmor-''P''iercing) rounds at targets either singly or in bursts.	+	The '''Autocannon''' is a direct-fire ballistic weapon, firing HEAP (''H''igh-''E''xplosive ''A''rmor-''P''iercing) rounds at targets either singly or in bursts.
−	Different manufacturers and models of autocannons had different calibers (25 mm–203 mm) and rates of fire. Due to this, autocannons were grouped into generic "classes" of similar common damage ratings, with autocannon/20s doing massive damage while having very short range.<ref name="TMp207+">''TechManual'', p. 207</ref>	+	Different manufacturers and models of autocannons have different calibers (25mm-203mm) and rates of fire. Due to this, autocannons are grouped into generic "classes" of autocannons with common damage ratings, with '''Autocannon/20'''s doing massive damage while having very short range.
−	This autocannon class could decapitate any [['Mech]] with one good hit to the head, regardless of the weight class, as that location could not mount little more than half a ton's worth of standard armor. The AC/20 was capable of ripping nearly a ton and a quarter of armor off a 'Mech in any given volley (or shot, based on the model). This was enough damage to take down even the heaviest of 'Mechs, if aimed well. Only [[hardened armor]] or [[ballistic-reinforced armor]] could save a [[MechWarrior]] from a hit from this class of cannon to the head.	+	An example of the rating system: the Crusher Super Heavy Cannon is a 150mm weapon firing ten shells per "round" while the Chemjet Gun is a 185mm weapon firing much slower ''(possibly 1 shell)'', and causing higher damage per shell. Despite their differences, both are classified as Autocannon/20s due to their damage output.
−	As an example of the rating system, the Crusher Super Heavy Cannon was a 150 mm weapon firing a ten-round cassette in a ten-second period, while the ChemJet Gun was a 185 mm weapon firing a four-round cassette in the same period. As both weapons were capable of firing 200 kilograms of ammunition in a 10-second period, at an effective range of just under 300 meters, they were both classified as autocannon/20s.<ref name=ER3052p98>''Era Report: 3052'', p. 98, "Regarding Military Technology Classification"</ref>	+	==Ammunition==
−		+	A standard AC/20 can fire multiple types of ammunition, most of which were developed by the [[Federated Commonwealth]] in order to make their large supply of standard autocannon more useful in the age of [[Ultra Autocannon|Ultra]] and [[LB-X Autocannon|LB-X autocannon]]. These types are:
−	== Ammunition ==	+	{|width='200'
−	A standard AC/20 could fire [[:Category:Special_Munitions|multiple types of ammunition]], most of which were developed by the [[Federated Commonwealth]] in order to make their large supply of standard autocannon more useful in the age of [[ultra autocannon|ultra]] and [[LB-X autocannon|LB-X autocannon]].<ref name="TMp208">''TechManual'', p. 208, "Autocannon Munitions"</ref>	+	! Type
−		+	! BV (1.0)
−	== Models ==	+	! Cost
−	The autocannon/20 was manufactured on the following planets:	+	|-
−		+	| Standard
−	===<span id="Armstrong">Armstrong</span>===	+	| 20
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"	+	| 10,000
−	|'''Manufactured on'''	+	|-
−	|'''Manufactured by'''	+	| Armor-Piercing
−	|'''Typically used in'''	+	| 80
−	|'''References'''	+	| 40,000
−	|----	+	|-
−	| [[Bryant]]	+	| Flechette
−	| [[HartfordCo Industries]]	+	| 10
−	| [[Von Luckner]]	+	| 15,000
−	| <ref name=TRO3025p140>''Technical Readout: 3025 Revised'', p. 140</ref>	+	|-
		+	| Incendiary
		+	| 20
		+	| 20,000
		+	|-
		+	| Precision
		+	| 80
		+	| 60,000
	|}		|}
−	===<span id="ChemJet Gun 185mm">ChemJet Gun 185mm</span>===	+	==Models==
−	The titanic 185 mm ChemJet Gun used a popular propellant system that mixed two chemicals in suspension, to propel its four-round bursts from the barrel. This produced an enormous amount of heat, to the point that, on the Mk I model of the Demolisher tank, the crews had to wear special coolant suits; the later Mk II version solved this problem by channeling most of the ejection gases through the barrels.<ref name=TRO3039-86>''Technical Readout: 3039'', p. 86, "Demolisher Heavy Tank</ref><ref name=ER3052p98/>	+	The Autocannon/20 is manufactured on the following planets:
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"	+	{| width='500'
−	|'''Manufactured on'''	+	! Brand
−	|'''Manufactured by'''	+	! Planet
−	|'''Typically used in'''	+	! Company
−	|'''References'''	+	|-
−	|----	+	| [[ChemJet Gun 185mm|ChemJet Gun 185mm]]
	| [[Betelgeuse]]		| [[Betelgeuse]]
	| [[Aldis Industries]]		| [[Aldis Industries]]
−	| [[Demolisher]]
−	| <ref name=TRO3039-86/>
	|-		|-
		+	| [[ChemJet Gun 185mm|ChemJet Gun 185mm]]
	| [[New Samarkand]]		| [[New Samarkand]]
	| [[New Samarkand Metals]]		| [[New Samarkand Metals]]
−	| [[Demolisher]]
−	| <ref name=TRO3039-86/>
	|-		|-
		+	| [[ChemJet Gun 185mm|ChemJet Gun 185mm]]
	| [[Terra]]		| [[Terra]]
	| [[Aldis Industries]]		| [[Aldis Industries]]
−	| [[Demolisher]]
−	| <ref name=TRO3039-86/>
−	|}
−
−	===<span id="Crusher SH Cannon">Crusher SH Cannon</span>===
−	Mounted on the [[Quikscell_Company|Quikscell]] [[Hetzer]] [[combat vehicle]], this weapon fired shells in the 150 mm range in ten-shot bursts.<ref name=TRO46>''Technical Readout: 3026 Revised'', 46</ref><ref name=TRO56>''Technical Readout: 3039'', 56</ref><ref name=ER3052p98/>
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Indicass]]
−	| [[Ceres Metals Industries]]
−	| [[Hetzer]]
−	| <ref name=TRO3026p42>''Technical Readout: 3026'', p. 42</ref>
	|-		|-
−	| [[Kalidasa]], [[Layover]]	+	| [[Armstrong Requiem|Armstrong Requiem]]
−	| [[Quikscell Company]]	+	| [[Ramora]]
−	| [[Hetzer]]	+	| [[United Outworlders Corporation]]
−	| <ref name=objfw34>''Objectives: Free Worlds League, p. 34</ref>
	|-		|-
−	| [[Alshain]]	+	| [[Crusher SH Cannon|Crusher SH Cannon]]
		+	| [[Kalidasa]]
	| [[Quikscell Company]]		| [[Quikscell Company]]
−	| [[Hetzer]]
−	| <ref name=TRO3026p48>''Technical Readout: 3026 Revised'', p. 48</ref>
−	|}
−
−	===<span id="Deathgiver">Deathgiver</span>===
−	The Deathgiver was known to fire 12 cm (120 mm) rounds.<ref name=SoFch25>''Storms of Fate'', ch. 25</ref>
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Terra#Terra_IV_.28Mars.29|Mars]], [[Northwind]]
−	| [[Cosara Weaponries]]
−	| [[King Crab]]
−	| <ref name=TRO2750>''Technical Readout: 2750'', pp. 54–55</ref>
−	|}
−
−	===<span id="Defiance Killer Type T">Defiance Killer Type T</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Hesperus II]]
−	| [[Defiance Industries]]
−	| [[Rommel]]
−	| <ref name=TRO3025p139>''Technical Readout: 3025 Revised'', p. 139</ref>
−	|----
−	| [[Terra]]
−	| [[Mitchell Vehicles]]
−	| [[Shootist]]
−	| <ref name=TRO3058p129>''Technical Readout: 3058'', p. 129</ref>
−	|}
−
−	===<span id="Defiance 'Mech Hunter">Defiance 'Mech Hunter</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Hesperus II]]
−	| [[Defiance Industries]]
−	| [[Atlas (BattleMech)|Atlas]]
−	| <ref name=TRO:SWp180>''Technical Readout: Succession Wars'', p. 180</ref>
	|-		|-
−	| [[Al Na'ir]]	+	| [[Crusher SH Cannon|Crusher SH Cannon]]
−	| [[Yori 'Mech Works]]	+	| [[Indicass]]
−	| [[Atlas (BattleMech)|Atlas]]	+	| [[Ceres Metals Industries]]
−	| <ref name=TRO:SWp180/>
−	|-
−	| [[Quentin]]
−	| [[Independence Weaponry]]
−	| [[Atlas (BattleMech)|Atlas]]
−	| <ref name=TRO:SWp180/>
	|-		|-
		+	| [[Defiance 'Mech Hunter|Defiance 'Mech Hunter]]
	| [[Hesperus II]]		| [[Hesperus II]]
	| [[Defiance Industries]]		| [[Defiance Industries]]
−	| [[Rommel]]	+	|-
−	| <ref name=TRO3026p138>''Technical Readout: 3026 Revised'', p. 138</ref>	+	| [[Imperator Zeta-A|Imperator Zeta-A]]
−	|}	+	| [[Atreus]]
−
−	===<span id="Imperator-D">Imperator-D</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Terra#Terra_IV_.28Mars.29|Mars]] [[Northwind]]
−	| [[Cosara Weaponries]]
−	| [[King Crab]]
−	| <ref name=TRO:SWp184>''Technical Readout: Succession Wars'', p. 184</ref>
−	|}
−
−	===<span id="Imperator Zeta-A">Imperator Zeta-A</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Atreus (FWL)|Atreus]]
	| [[Imperator Automatic Weaponry]]		| [[Imperator Automatic Weaponry]]
−	| [[Riever]]	+	|-
−	| <ref>''Objective Raids'', p. 120</ref>	+	| [[Kali Yama Big Bore|Kali Yama Big Bore]]
−	|}
−
−	===<span id="Kali Yama Big Bore">Kali Yama Big Bore</span>===
−	The '''Kali Yama Big Bore''' was an autocannon/20 model manufactured in the [[Free Worlds League]] and exported to the [[Capellan Confederation]].
−
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
	| [[Kalidasa]]		| [[Kalidasa]]
	| [[Kali Yama Weapons Industries Incorporated]]		| [[Kali Yama Weapons Industries Incorporated]]
−	| [[Hunchback]], [[Thunder (BattleMech)|Thunder]]	+	|-
−	| <ref name=TRO3050U-58>''Technical Readout: 3050 Upgrade'', p. 58: "HBK-5M Hunchback"</ref><ref name=TRO3055U-58>''Technical Readout: 3055 Upgrade'', p. 58: "THR-1L Thunder"</ref><ref name=OR128>''Objective Raids'', p. 128: "Produced Kali Yama Weapons Components"</ref>	+	| [[Luxor Devastator-20|Luxor Devastator-20]]
−	|}
−
−	===Luxor-20 Series===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	|
−	|
−	| [[Bug-Eye]]
−	| <ref name=TRO2750p124>''Technical Readout: 2750'', pp. 124–125: "Bug-Eye Ship Profile"</ref>
−	|}
−
−	===<span id="Luxor Devastator-20">Luxor Devastator-20</span>===
−	Examples of the 120 mm<ref name=SoFch11>''Storms of Fate'', ch. 11</ref> Luxor Devastator-20 gained a reputation being extremely prone to jamming on the early test models of the AXM-1N ''[[Axman]]''; the designers ultimately came up with an alternate [[LRM-15]]-armed AXM-2N variant.<ref name=TRO3050-152>''Technical Readout: 3050'', p. 152: "AXM-1N Axman"</ref><ref name=FSS-73>''First Somerset Strikers'', p. 73: "AXM-2N Axman"</ref><ref name=BCTRoW-127>''BattleTech Compendium: The Rules of Warfare'', p. 127: "AXM-2N Axman"</ref>
−
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
	| [[New Syrtis]]		| [[New Syrtis]]
	| [[Johnston Industries]]		| [[Johnston Industries]]
−	| [[Axman]]
−	| <ref name=TRO3050-152/><ref name=TRO3050U-70>''Technical Readout: 3050 Upgrade'', p. 70: "Axman"</ref>
	|-		|-
−	| [[Furillo]]	+	| [[Mydron A|Mydron A]]
−	| [[Defiance Industries]]
−	| [[Axman]]
−	| <ref name=TRO:CIp144>''Technical Readout: Clan Invasion'', p. 144</ref>
−	|-
−	| [[Panpour]]
−	| [[Jalastar Aerospace]]
−	| [[Typhoon (Combat Vehicle)|Typhoon]]
−	| <ref name=TRO3058p82>''Technical Readout: 3058'', p. 82</ref>
−	|}
−
−	===<span id="Luxor Heavy">Luxor Heavy</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Sarna]] [[St. Ives]]
−	| [[Tengo Aerospace]]
−	| [[Lightning (Aerospace Fighter class)|Lightning]]
−	| <ref name=TRO3075p250>''Technical Readout: 3075'', p. 250</ref>
−	|-
−	| [[Texlos]]
−	| [[HildCo]]
−	| [[Lightning (Aerospace Fighter class)|Lightning]]
−	| <ref name=TRO3075p250>''Technical Readout: 3075'', p. 250</ref>
−	|-
−	| [[Tharkad]]
−	| [[Lockheed/CBM]]
−	| [[Lightning (Aerospace Fighter class)|Lightning]]
−	| <ref name=TRO3075p250>''Technical Readout: 3075'', p. 250</ref>
−	|-
−	| [[Ramora]]
−	| [[United Outworlders Corporation]]
−	| [[Lightning (Aerospace Fighter class)|Lightning]]
−	| <ref name=TRO3075p250>''Technical Readout: 3075'', p. 250</ref>
−	|}
−
−	===<span id="Mydron A">Mydron A</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
	| [[Bithinia]]		| [[Bithinia]]
	| [[Bithinian Ballistics]]		| [[Bithinian Ballistics]]
−	| [[UrbanMech]] Trashcan
−	| <ref>''Objective Raids'', p. 142</ref>
	|-		|-
		+	| [[Mydron  A|Mydron  A]]
	| [[Gulkana]]		| [[Gulkana]]
	| [[Yeffters Weapons Factory]]		| [[Yeffters Weapons Factory]]
−	| [[Lightning (Aerospace Fighter class)|Lightning]]	+	|-
−	| <ref>''Objective Raids'', p. 94</ref>	+	| [[Pontiac 100|Pontiac 100]]
−	|}
−
−	===<span id="Pontiac 100">Pontiac 100</span>===
−	The Pontiac 100 was famously known for its massive firepower, but some models occasionally displayed ammunition feed problems when mounted to the ''[[Victor]]'' BattleMech.<ref name=TRO3039-159>''Technical Readout: 3039'', p. 159</ref><ref name=TRO3025-110>''Technical Readout: 3025'', p. 110</ref><ref name=TRO3025R-104>''Technical Readout: 3025 Revised'', p. 104</ref><ref name=TROSWp154>''Technical Readout: Succession Wars'', p. 154</ref>
−
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
	| [[Sterope]]		| [[Sterope]]
	| [[Sterope Defense Industries]]		| [[Sterope Defense Industries]]
−	| [[Victor]]	+	|-
−	| <ref name=TRO3039-159/><ref name=TRO3025-110/><ref name=TRO3025R-104/><ref name=TROSWp154/>	+	| [[Scarborough Original 20|Scarborough Original 20]]
−	|----
−	| [[St. Ives]]
−	| [[HildCo Interplanetary]]
−	| [[Victor]]
−	| <ref name=TRO3025p111>''Technical Readout: 3025'', p. 111</ref><ref name=TRO3025p104>''Technical Readout: 3025 Revised'', p. 104</ref>
−	|}
−
−	===<span id="RNG Ranger">RNG Ranger<span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Tharkad]]
−	| [[Bauer Enterprises]]
−	| [[Rapier]]
−	| <ref name=TRO3050p244>''Technical Readout: 3050 Upgrade'', p. 244</ref>
−	|}
−
−	===<span id="Scarborough Original 20">Scarborough Original 20</span>===
−	Originally developed by Scarborough Limited, though the Scarborough Original 20 autocannon did experience some initial developmental problems, the resulting weapon was equivalent to 200 mm autocannons produced by other companies in the massive amount of damage it inflicted.<ref name=TRO:3026>''Technical Readout: 3026'', pp. 32–33, "Saladin Assault Hover Tank"</ref><ref name=TRO:3026R>''Technical Readout: 3026 Revised'', pp. 36–37, "Saladin Assault Hover Tank"</ref>
−
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
	| [[Al Na'ir]]		| [[Al Na'ir]]
	| [[Scarborough Manufacturers]]		| [[Scarborough Manufacturers]]
−	| [[Saladin]]	+	|-
−	| <ref name=TRO3026p36>''Technical Readout: 3026 Revised'', p. 36</ref>	+	| [[Scarborough Original 20|Scarborough Original 20]]
		+	| [[Scarborough]]
		+	| [[Scarborough Limited]]
	|}		|}
−	===<span id="Tomodzuru">Tomodzuru</span>===	+
−	The Tomodzuru-series has a massive 200 mm barrel.<ref>''Godfather''</ref>	+	==Technical Availability==
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"	+	:Weapon / Item: Autocannon/20
−	|'''Manufactured on'''	+	:Cost: 300
−	|'''Manufactured by'''	+	:Age of War –Star League :rare
−	|'''Typically used in'''	+	:Succession War: very rare
−	|'''References'''	+	:Clan Invasion – Present: rare
−	|----	+	:Introduced: 2500 LC / —
−	| Unknown	+	:Extinction: — / 2850
−	| [[Komiyaba/Nissan General Industries]]	+	:Reintroduced: NA / NA
−	| [[Hunchback]]	+	<ref> Techmanual p. 289</ref>
−	| | <ref name=TRO3025p59>''Technical Readout: 3025'', p. 59</ref><ref name=TRO3025p60>''Technical Readout: 3025 Revised'', p. 60</ref>
−	|----
−	| [[Capella]]
−	| [[Mujika Aerospace Technologies]]
−	| [[Transit]]
−	| <ref name=TRO3025p158>''Technical Readout: 3025 Revised'', p. 158</ref>
−	|}
−	===<span id="Zeus-36, Mark III">Zeus-36, Mark III</span>===
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Caph]]
−	| [[Stormvanger Assemblies, Unlimited]]
−	| [[Cyclops]]
−	| <ref name=TROSWp168>''Technical Readout: Succession Wars'', p. 168</ref><ref name=TRO3026p112>''Technical Readout: 3026 Revised'', p. 112</ref>
−	|}
−	===<span id="Zeus-75 Mark IX">Zeus-75 Mark IX</span>===	+	==References==
−	The mammoth Zeus-75 fired a four-round burst of hypervelocity depleted uranium armor penetrators (HDUAP), capable of destroying most 'Mechs up to 70 tons in a single salvo.<ref name=TR03026-46>''Technical Readout: 3026'', p. 46, "MechBuster Fighter"</ref><ref name=TR03026R-50>''Technical Readout: 3026 Revised'', p. 50, "MechBuster"</ref>
−	{|class="wikitable" style="background: #gray; text-align:center; border: 2px solid black;"
−	|'''Manufactured on'''
−	|'''Manufactured by'''
−	|'''Typically used in'''
−	|'''References'''
−	|----
−	| [[Gorton, Kingsley, and Thorpe Enterprises]]
−	| [[Rasalhague]]
−	| [[MechBuster]]
−	| <ref name=TR03026-46/><ref name=TR03026R-50/><ref name=TRO3039-184>''Technical Readout: 3039'', p. 184: "MechBuster"</ref>
−	|}
−
−	== See Also ==
−	* [[Caseless AC/20|Caseless autocannon/20]]: A smaller and lighter version of the autocannon/20 specifically designed to use caseless ammunition, it had twice the ammunition capacity per given mass, along with a size and weight profile just slightly larger than the [[autocannon/10]]. However, it had one critical design flaw that led to it being phased out in favor of a more modern variant of [[caseless]] munitions; though these newer munitions were not as lightweight as their counterparts, they could be used with a simple modification to existing autocannons and was far less prone to explosions in the event of a weapon jam.
−
−	== References==
	<references />		<references />
−	== Bibliography ==	+	==Bibliography==
−	* ''[[Godfather]]'' (short story)	+	*''[[Technical Readout: 3025]]''
−	* ''[[Storms of Fate]]'' (novel)	+	*''[[Technical Readout: 3025 Revised]]''
−	* ''[[TechManual]]''	+	*''[[Technical Readout: 3050]]''
−	* ''[[Technical Readout: 3025]]''	+	*''[[BattleTech Master Rules]]''
−	* ''[[Technical Readout: 3025 Revised]]''	+	*''[[Field Manual: Federated Suns]]''
−	* ''[[Technical Readout: 3050]]''	+	*''[[Total Warfare]]''
−	* ''[[Technical Readout: Succession Wars]]''	+	*''[[TechManual]]''
−
−
−	[[Category:Technology]]
−	[[Category:Weapons]]	+	[[Category:Technology|Autocannon]]
−	[[Category:Ballistic Weapons]]	+	[[Category:Slug-Throwers|Autocannon]]
−	[[Category:Ballistic Weapons (Heavy)]]	+	[[Category:Ballistic Weapons|Autocannon]]
−	[[Category:Autocannon (Heavy)]]	+	[[Category:Weapons|Autocannon]]
−	[[Category:Inner Sphere Technology Base]]	+	[[Category:Burst-Fire Weapons]]
		+	[[Category:Autocannon]]
		+	[[Category:Autocannon/20]]

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{{InfoBoxWeapon | image = [[File:Autocannon.jpg|191px]] | name = AC/20 | Type = Ballistic (Direct Fire) | Tech Base = Inner Sphere (IS) | Year Availability = [[2500]] (LC) | Heat = 7 | Damage = 20 | Minimum Range = N/A | Short Range = 1-3 | Medium Range = 4-6 | Long Range = 7-9 | Tons = 14 | Critical Slots = 10 | Ammo Per Ton = 5 | Cost (unloaded) = 300,000 | Ammo Cost (per ton) = 10,000 | BV (1.0) = 178 | BV (2.0) = 178 }} ==Description== The '''Autocannon''' is a direct-fire ballistic weapon, firing HEAP (''H''igh-''E''xplosive ''A''rmor-''P''iercing) rounds at targets either singly or in bursts. Different manufacturers and models of autocannons have different calibers (25mm-203mm) and rates of fire. Due to this, autocannons are grouped into generic "classes" of autocannons with common damage ratings, with '''Autocannon/20'''s doing massive damage while having very short range. An example of the rating system: the Crusher Super Heavy Cannon is a 150mm weapon firing ten shells per "round" while the Chemjet Gun is a 185mm weapon firing much slower ''(possibly 1 shell)'', and causing higher damage per shell. Despite their differences, both are classified as Autocannon/20s due to their damage output. ==Ammunition== A standard AC/20 can fire multiple types of ammunition, most of which were developed by the [[Federated Commonwealth]] in order to make their large supply of standard autocannon more useful in the age of [[Ultra Autocannon|Ultra]] and [[LB-X Autocannon|LB-X autocannon]]. These types are: {|width='200' ! Type ! BV (1.0) ! Cost |- | Standard | 20 | 10,000 |- | Armor-Piercing | 80 | 40,000 |- | Flechette | 10 | 15,000 |- | Incendiary | 20 | 20,000 |- | Precision | 80 | 60,000 |} ==Models== The Autocannon/20 is manufactured on the following planets: {| width='500' ! Brand ! Planet ! Company |- | [[ChemJet Gun 185mm|ChemJet Gun 185mm]] | [[Betelgeuse]] | [[Aldis Industries]] |- | [[ChemJet Gun 185mm|ChemJet Gun 185mm]] | [[New Samarkand]] | [[New Samarkand Metals]] |- | [[ChemJet Gun 185mm|ChemJet Gun 185mm]] | [[Terra]] | [[Aldis Industries]] |- | [[Armstrong Requiem|Armstrong Requiem]] | [[Ramora]] | [[United Outworlders Corporation]] |- | [[Crusher SH Cannon|Crusher SH Cannon]] | [[Kalidasa]] | [[Quikscell Company]] |- | [[Crusher SH Cannon|Crusher SH Cannon]] | [[Indicass]] | [[Ceres Metals Industries]] |- | [[Defiance 'Mech Hunter|Defiance 'Mech Hunter]] | [[Hesperus II]] | [[Defiance Industries]] |- | [[Imperator Zeta-A|Imperator Zeta-A]] | [[Atreus]] | [[Imperator Automatic Weaponry]] |- | [[Kali Yama Big Bore|Kali Yama Big Bore]] | [[Kalidasa]] | [[Kali Yama Weapons Industries Incorporated]] |- | [[Luxor Devastator-20|Luxor Devastator-20]] | [[New Syrtis]] | [[Johnston Industries]] |- | [[Mydron A|Mydron A]] | [[Bithinia]] | [[Bithinian Ballistics]] |- | [[Mydron A|Mydron A]] | [[Gulkana]] | [[Yeffters Weapons Factory]] |- | [[Pontiac 100|Pontiac 100]] | [[Sterope]] | [[Sterope Defense Industries]] |- | [[Scarborough Original 20|Scarborough Original 20]] | [[Al Na'ir]] | [[Scarborough Manufacturers]] |- | [[Scarborough Original 20|Scarborough Original 20]] | [[Scarborough]] | [[Scarborough Limited]] |} ==Technical Availability== :Weapon / Item: Autocannon/20 :Cost: 300 :Age of War –Star League :rare :Succession War: very rare :Clan Invasion – Present: rare :Introduced: 2500 LC / — :Extinction: — / 2850 :Reintroduced: NA / NA <ref> Techmanual p. 289</ref> ==References== <references /> ==Bibliography== *''[[Technical Readout: 3025]]'' *''[[Technical Readout: 3025 Revised]]'' *''[[Technical Readout: 3050]]'' *''[[BattleTech Master Rules]]'' *''[[Field Manual: Federated Suns]]'' *''[[Total Warfare]]'' *''[[TechManual]]'' [[Category:Technology|Autocannon]] [[Category:Slug-Throwers|Autocannon]] [[Category:Ballistic Weapons|Autocannon]] [[Category:Weapons|Autocannon]] [[Category:Burst-Fire Weapons]] [[Category:Autocannon]] [[Category:Autocannon/20]]

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