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{{Infobox main|weapon
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<onlyinclude>
| name = Chain shotgun
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{{infobox main|weapon|
| image = ChainShotgun.png
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|name = Chain Shotgun
| description ="A magazine-fed fully automatic shotgun. It is even shorter-ranged than a typical shotgun, but is extraordinarily dangerous due to burst fire."
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|image = ChainShotgun.png|Chain Shotgun
| type = Equipment
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|description ="A magazine-fed fully automatic shotgun. Short range and very low accuracy, but extraordinarily dangerous due to burst fire.
| type2 = Weapons
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|type = Equipment
| tech level = Industrial
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|type2 = Weapons
| class = Industrial
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|class = Modern
| damage = 18
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|damage = 18
| damage type = Bullet
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|range = 12.9
| armorPenetration = 14
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|velocity = 55
| range = 12.9
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|accuracyTouch = 57
| velocity = 55
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|accuracyShort = 64
| accuracyTouch = 57
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|accuracyMedium = 55
| accuracyShort = 64
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|accuracyLong = 45
| accuracyMedium = 55
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|mode = Burst
| accuracyLong = 45
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|burst = 3
| accuracyAvg = 59.7
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|burstTicks = 12
| mode = Burst
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|warmup = 72
| burst = 3
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|cooldown = 81
| burstTicks = 10
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|DPS = DPS
| warmup = 72
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|sell = {{icon|silver|400}}
| cooldown = 81
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|buy = {{icon|steel|70}} + {{icon|component|5}}
| DPS = DPS
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|mass base = 4.5
| stoppingPower = 3.0
 
| marketvalue = 405
 
| production facility 1 = Machining table
 
| research = Gas operation
 
| resource 1 = Steel
 
| resource 1 amount = 70
 
| resource 2 = Component
 
| resource 2 amount = 5
 
| mass base = 4.5
 
| work to make = 31000
 
| meleeattack1dmg = 9
 
| meleeattack1type = blunt
 
| meleeattack1part = Stock
 
| meleeattack1cool = 2.0
 
| meleeattack1ap = 13
 
| meleeattack2dmg = 9
 
| meleeattack2type = blunt
 
| meleeattack2part = Barrel
 
| meleeattack2cool = 2.0
 
| meleeattack2ap = 13
 
| meleeattack3dmg = 9
 
| meleeattack3type = Poke
 
| meleeattack3part = Barrel
 
| meleeattack3cool = 2.0
 
| meleeattack3ap = 13
 
| MeleeWeaponAverageDPS = 4.5
 
| MeleeWeaponAverageAP = 13
 
| page verified for version =
 
| skill 1 = Crafting
 
| skill 1 level = 6
 
| has quality = True
 
| weaponTags = Gun, IndustrialGunAdvanced
 
| thingSetMakerTags = RewardStandardQualitySuper
 
| tradeTags = WeaponRanged
 
 
}}
 
}}
{{Info|The '''chain shotgun''' is a very short range, multi-shot [[weapon]] which fires 3-shot bursts which deal fairly high damage individually (X3); a slightly shorter delay between each shot; a moderate time between bursts; slightly lower overall accuracy and slightly heavier weight.}}
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</onlyinclude>
== Acquisition ==
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{{info|The chain shotgun is a slightly heavier, multi-shot firearm in RimWorld which fires 3-shot bursts of rounds which deal a slightly higher amount of damage each; a moderate delay between each shot; a moderate time between bursts; very low accuracy and very short range.}}
Chain shotguns can be crafted at a [[{{P|Production Facility 1}}]] once the [[Research#{{P|Required Research}}|{{P|Required Research}}]] research project has been completed. They require {{Required Resources}}, {{Ticks|{{P|Work To Make}}}} of work, and a [[{{P|Skill 1}}]] skill of {{P|Skill 1 Level}}.
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===Combat Performance===
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It'll take 3 shots to the torso to kill an unarmored human with a chain shotgun, or around 5 shots against a human with a normal [[armor vest]]. The chain shotgun can also instantly remove digits, cripple eyeballs and cause lethal brain damage if the victim's skull is unprotected. Limbs can be crippled in 2 shots against an unarmored human. Without factoring in any cover or shooter's accuracy, the chain shotgun has an average time to down of around 8.7 seconds against unarmored people or 12 seconds against a person with an armor vest.
  
Chain shotguns can be [[Trade|purchased]] from [[outlander]] and orbital combat suppliers, outlander [[faction base]]s, or obtained from the following [[raider#Humanlike|raider]] kinds:
 
  
{| class="wikitable sortable"
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Since the chain shotgun has an extremely short range and fires in bursts - a quicker factoring in of odds with continuous failure - the chain shotgun can be considered a great weapon for inexperienced shooters, but not so good for skilled shooters; even the best shooters will struggle to be accurate with a chain shotgun and you're better off pairing them with longer-ranged weapons. A healthy level 0 traitless shooter, level 0 careful shooter or level 0 trigger-happy can somewhat efficiently use the chain shotgun up to 6 cells. However, a level 3 traitless shooter, level 0 careful shooter or level 6 trigger-happy is advisable to efficiently use the chain shotgun up to its maximum range of 9 cells.
! Raider Kind !! Chance !! Average Quality !! Health
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|-
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| Mercenary Gunner || 12.36% || Normal || 70-320%
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On average, the chain shotgun is best paired with a careful shooter until level 5, then with a trigger-happy shooter beyond that point.
|-
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| Ancient Soldier || 11.05% || Normal || 100%
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 +
====Melee Combat====
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A chain shotgun has a weapon bulk of 100%, but weapon bulk doesn't seem to have any observable effect on actual gameplay.
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 +
 
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All possible melee attacks with a chain shotgun:
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{| {{STDT| c_12 text-center}}
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!Tool
 +
!Attack
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!Damage Type
 +
!Power
 +
!Cooldown
 +
!Likelihood
 +
!Base DPS
 +
!Armored DPS
 +
|-  
 +
!Overall
 +
!-
 +
!-
 +
!9.69
 +
!1.869s
 +
!-
 +
!5.181
 +
!4.767
 +
|- newline
 +
|Stock
 +
|Smash
 +
|Blunt
 +
|9
 +
|1.8s
 +
|31%
 +
|5
 +
|4.6
 +
|- newline
 +
|Barrel
 +
|Smash
 +
|Blunt
 +
|10
 +
|1.9s
 +
|34.5%
 +
|5.263
 +
|4.842
 +
|- newline
 +
|Barrel
 +
|Poke
 +
|Blunt
 +
|10
 +
|1.9s
 +
|34.5%
 +
|5.263
 +
|4.842
 
|}
 
|}
  
== Analysis ==
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===Obtaining===
The chain shotgun is the strongest firearm in the game, barring the [[minigun]], but is limited by range.
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Chain shotguns can be purchased from outlander and orbital combat suppliers, or obtained from the following [[raider#Humanlike|raider]] kinds:
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'''Pirates:'''
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* Pirate - 3.9% chance (normal [[quality]] on average, 40-150% health)
 +
 
 +
'''Outlanders:'''
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* Town Guard - 1.9% chance (poor quality on average, 20-200% health)
 +
 
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'''Mercenaries:'''
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* Mercenary Gunner - 4% chance (normal quality on average, 70-230% health)
 +
 
 +
'''Spacers:'''
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* Space Soldier - 2.6% chance (good quality on average, 100% health)
  
It fires a 3-shot burst, with each bullet as strong as a [[pump shotgun]], but with significantly higher firerate. Raw damage output is amazing, only being surpassed by the [[minigun]] (before accuracy) and the single-use [[triple rocket launcher]]. In addition, the chain shotgun can stagger pawns as large as a [[centipede]]. While each burst is inaccurate, stray shots can occasionally hit surrounding targets, making it a good crowd-control weapon.
 
  
The obvious drawback compared to other weapons at its price level, like the [[assault rifle]], is its range. It has the shortest range of all human usable ranged weapons, equal to that of [[grenades]]. The minigun has clear superiority for crowd control, but is much more expensive and has unique downsides such as terrible accuracy, a massive warmup/cooldown cycle, and a reduction in wielder [[move speed]].
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Chain shotguns can also be crafted at a [[machining table]] once the [[Research#GasOperation|gas operation]] research is completed; from 70 [[steel]], 5 [[component]]s and {{Ticks|45000}} of work.
  
The chain shotgun is best suited as a close-quarters offensive weapon, though is an excellent supporting weapon due to its stopping power. It can be used behind melee fighters, and specialized [[killbox]]es take advantage of the shotgun's strength. It is especially good against [[infestation]]s and drop pods due to its stopping power, damage output, and crowd control, combined with the lack of range constraint. Note that even a shotgun won't be fired in melee combat, so keep your shotgun-wielding pawns out of melee, and engage shotgun-wielding enemies in melee.
 
  
=== Stats ===
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===Conclusion & Comparison===
Against an unarmored human, a chain shotgun can kill with 3 hits to the torso, 2 hits to the head or neck, or 1 hit to the brain; cripple or destroy limbs in 2 hits; and destroy eyes and digits with a single hit. It'll generally take around 4 hits (~6.98 seconds average) to incapacitate that human from pain shock.  
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The chain shotgun is a weapon that has an incredibly high base DPS, which in turn is offset by its very low base accuracy, meaning that it benefits greatly from high quality levels and being used against large targets. Alternatively, stray shots could also make it useful as a close-quarters crowd control weapon - though the [[minigun]] would likely perform better at this and it's unlikely that you'll end up in those situations prior to typically acquiring miniguns.
  
Overall, the chain shotgun is best paired with a careful shooter up to level 6, then with a trigger-happy shooter beyond that point.
 
  
{{Weapon Stats Table}}
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When it comes to head-on fights, the chain shotgun wins out against the single-shot [[pump shotgun]] more often than not, with both of them faring equally well when both shooters are either naked or wearing armor vests and [[simple helmet]]s of normal quality. However, the chain shotgun gets consistently outperformed by the cheaper and less advanced [[machine pistol]] when both shooters are naked, only achieving parity when both shooters wear the aforementioned armor. This naturally means that the chain shotgun doesn't stand a chance against the [[heavy SMG]] owing to the latter's superior accuracy, not to forget that the heavy SMG also requires less research and has twice the chain shotgun's range - the gulf doesn't change with armor either.
  
== Chain shotgun vs. comparable weapons ==
 
<!--
 
    Table cell hex colour values for win rates:
 
    0 - 20.83% win rate = #FF6969
 
    20.84 - 31.24% win rate = #FF9B72
 
    31.25 - 43.74% win rate = #FFCD7B
 
    43.75 - 56.25% win rate = #FFFF85
 
    56.26 - 68.75% win rate = #CDFF7B
 
    68.76 - 79.16% win rate = #9BFF72
 
    79.17 - 100.00% win rate = #69FF69
 
-->
 
This section goes over how well the chain shotgun fares against comparable weapons (similar value, tech level or similar characteristics) in 1 vs. 1 combat.
 
  
=== Methodology ===
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Due to its abysmal 9 cell range, the chain shotgun naturally isn't a very feasible weapon for field combat since it's likely that people equipped with chain shotguns will get injured or even downed while trying to get in range with their target.
<div class="mw-collapsible mw-collapsed" style="width:800px;overflow:auto">
 
  
<div class="mw-collapsible-content">
 
* All testing is semi-automated which allows for large sample sizes to be gathered per set of results with ease
 
* All pawns have skill levels of 14 in ranged and melee
 
* No pawns have any traits that affect combat performance
 
* All pawns are of at least 18 years of age and completely healthy
 
* Pawns are divided by walls to prevent stray shots from skewing results in any way
 
* Weather is always kept clear
 
* No cover is used for either team</div>
 
</div>
 
  
Results in the tables below are the percentages of battles that chain shotguns either won or tied against the weapon listed in the first column of said tables, with a sample size of 2,000 battles per result. Higher percentages are better.
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In conclusion, the chain shotgun really should be avoided if you're looking to progress your arsenal in terms of power; go with the budget but still superior machine pistol or the venerable heavy SMG instead. Its best use case is holding doorways against large animals such as [[grizzly bear]]s or [[megasloth]]s where its accuracy potential will be mostly realized, or in [[killbox]]es where you can get enemies to group together at close range. Other than that, it's worse than the pump shotgun owing to only having a slightly better damage output but that simply can't compensate for such a large range deficit which melee units can easily close after one burst.
  
==== Unarmored ====
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==Graphs==
For the unarmored testing, all pawns wore normal quality [[plainleather]] [[pants]], plainleather [[button-down shirt]]s, plainleather [[duster]]s and plainleather [[cowboy hat]]s.
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The graphs assume a normal quality chain shotgun against an adult human that's out in the open in clear weather. For DPS, projectile speed has also been factored into the equation, with the weighting based on the base amount of attacks that it'll take to put the aforementioned target into pain shock.
  
{| class="wikitable sortable" style="text-align: center"
 
! Other Weapon !! 3 !! 7 !! 12 !! 18 !! 25 !! 32 !! 40
 
|-
 
! Pump Shotgun
 
| style="background: #9BFF72" | 73.75% || style="background: #9BFF72" | 72.94% || style="background: #9BFF72" | 71.80% || - || - || - || -
 
|-
 
! Heavy SMG
 
| style="background: #FFCD7B" | 40.30% || style="background: #FFFF85" | 52.64% || style="background: #CDFF7B" | 64.30% || - || - || - || -
 
|-
 
! LMG
 
| style="background: #9BFF72" | 70.41% || style="background: #CDFF7B" | 67.51% || style="background: #CDFF7B" | 67.06% || - || - || - || -
 
|-
 
! Charge Rifle
 
| style="background: #9BFF72" | 70.27% || style="background: #CDFF7B" | 66.55% || style="background: #CDFF7B" | 64.00% || - || - || - || -
 
|-
 
! Minigun
 
| style="background: #9BFF72" | 76.82% || style="background: #CDFF7B" | 66.55% || style="background: #CDFF7B" | 58.93% || - || - || - || -
 
|}
 
  
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[[File:ChainShotgunAccuracyNoTrait.png|494px|Chain Shotgun's accuracy with various shooters without any trait.]]
 +
[[File:ChainShotgunDPSNoTrait.png|494px|Chain Shotgun's DPS with various shooters without any trait.]]
  
==== Armored ====
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[[File:ChainShotgunAccuracyCarefulShooter.png|494px|Chain Shotgun's accuracy with various shooters with careful shooter.]]
For the armored testing, all pawns wore normal quality [[flak pants]], [[flak vest]]s, plainleather button-down shirts, [[flak jacket]]s and [[steel]] [[simple helmet]]s.
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[[File:ChainShotgunDPSCarefulShooter.png|494px|Chain Shotgun's DPS with various shooters with careful shooter.]]
  
{| class="wikitable sortable" style="text-align: center"
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[[File:ChainShotgunAccuracyTriggerHappy.png|494px|Chain Shotgun's accuracy with various shooters with trigger-happy.]]
! Other Weapon !! 3 !! 7 !! 12 !! 18 !! 25 !! 32 !! 40
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[[File:ChainShotgunDPSTriggerHappy.png|494px|Chain Shotgun's DPS with various shooters with trigger-happy.]]
|-
 
! Pump Shotgun
 
| style="background: #9BFF72" | 74.11% || style="background: #9BFF72" | 73.86% || style="background: #9BFF72" | 76.84% || - || - || - || -
 
|-
 
! Heavy SMG
 
| style="background: #FFCD7B" | 40.13% || style="background: #FFFF85" | 50.64% || style="background: #CDFF7B" | 61.06% || - || - || - || -
 
|-
 
! LMG
 
| style="background: #9BFF72" | 72.44% || style="background: #9BFF72" | 71.78% || style="background: #CDFF7B" | 67.40% || - || - || - || -
 
|-
 
! Charge Rifle
 
| style="background: #FFFF85" | 52.81% || style="background: #FFFF85" | 52.22% || style="background: #FFFF85" | 49.98% || - || - || - || -
 
|-
 
! Minigun
 
| style="background: #69FF69" | 80.61% || style="background: #9BFF72" | 69.19% || style="background: #CDFF7B" | 62.05% || - || - || - || -
 
|}
 
  
 
== Version history ==
 
== Version history ==
* [[Version/0.17.1546|0.17.1546]] - Added.
 
* Beta 19 - Received a buff to accuracy, range and ticks between burst shots. It also got a new sprite.
 
* Beta 19/1.0 - Barrel melee attack damage reduced 10 -> 9, cooldown increased from 1.9s -> 2s. Stock cooldown increased from 1.8 -> 2.
 
<gallery>
 
OldChainShotgun.png|Original sprite of the Chain shotgun
 
</gallery>
 
  
{{Nav|weapon|wide}}
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In Beta 19 it received a buff to accuracy and range. It also got a remodel.
[[Category:Equipment]] [[Category:Weapons]] [[Category:Industrial Weapons]]
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[[Category:Ranged Weapons]] [[Category:Burst Weapons]] [[Category:Shotguns]]
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The old model was reminiscent of a Saiga-type shotgun.
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https://rimworldwiki.com/wiki/Special:UploadStash/file/161ug81pt2b0.mq48tr.1653.png
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[[Kind::Weapons| ]]
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{{nav|weapon|wide}}
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[[Category:Weapons]]
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[[Category:Equipment]]

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