Shotgun Calculation Guide

This guide covers how exactly to calculate shotgun stats, and assumes you've already read the base guide here, as well as the general formulas guide here.

Note that the previous page did adjust some of the bonuses a bit:
It converted all grade bonuses to their actual final values (assuming nothing else added grades), to make it easier to compare them against non-grade bonuses.
It also converted all Fire Interval bonuses into Fire Rate ones. The game actually tracks the amount of time between shots, and then just inverts the value to get the fire rate on the card.

Weapon Type Definition

The Weapon Type Definition is the most important part when it comes to calculating stats. It defines all the formulas and base values for all the gun's stats. It also sets up certain stats to use grades, and configures the base and per-grade bonuses. This means that even if they have the exact same parts, two weapons with two different definitions can have you different stats.
There are 5 different definitions, one for each manufacturer.
Bandit Hyperion Jakobs Tediore Torgue
Weapon Damage 8×β +0.03 6×β +0.03 8.8×β +0.03 7.12×β +0.03 8.8×β +0.03
Fire Interval 0.8 -0.03 0.28 -0.03 0.06 -0.03 0.66 -0.03 1 -0.03
Mag Size 10 +0.07 7 +0.07 2 +0.07 5 +0.07 4 +0.07
Reload Time 4.1 -0.05 3.5 -0.05 2.8 -0.05 2.5 -0.05 3.8 -0.05
Weapon Spread 8 -0.05 6 -0.05 7.4 -0.05 6.7 -0.05 7.1 -0.05
Impulse Accuracy 9.5 -0.05 -5 +0.05 11 -0.05 8 -0.05 8 -0.05
Zoom FOV 60 -0.13 60 -0.13 60 -0.13 60 -0.13 60 -0.13
Projectile Count 6 6 7 6 5
Shot Cost 1 1 1 1 1
Status Chance Base 0.4 0.4 0.4 0.4 0.4
Status Chance Damage 8×β 8×β 8×β 8×β 8×β
This list is of course not exhaustive.

Definitions also have their own stat bonuses, which always apply ontop of these base values.
Bandit Hyperion Jakobs Tediore Torgue
+2 Min Accuracy
+2 Max Accuracy
While Zoomed:
-1 Min Accuracy
+10 Accuracy Regen
+0.6 Projectile Speed
While Zoomed:
-1.2 Weapon Spread
-1 Min Accuracy
+1 Min Accuracy
+5 Max Accuracy
+1 Accuracy Regen
+0.3 Crit Damage
+0.5 Projectile Speed
While Zoomed:
-1 Min Accuracy
+2 Min Accuracy
+2 Max Accuracy
While Zoomed:
-1 Min Accuracy
+2 Min Accuracy
+2 Max Accuracy
While Zoomed:
-1 Min Accuracy
The rest of this page will re-define the values from the base guide, properly sorting them into their exact bonus type. It will also show stats for unique parts.


Accessory

Bayonet 1Bayonet 2Moon ClipShotgun Shell
+0.5 Melee Damage +0.5 Melee Damage +6 Mag Size
-3 Reload Time
+1 Weapon Damage
+1 Fire Interval
+1 Mag Size
+1 Reload Time
Tech 1Tech 2Tech 3Vertical Grip
-5 Weapon Damage
+4 Fire Interval
+8 Weapon Spread
+3 Zoom FOV
+2 Weapon Spread
+3 Zoom FOV
+0.5 Crit Damage
-1 Weapon Damage
+2 Fire Interval
+2 Mag Size
+5 Reload Time
+7 Fire Interval
-6 Weapon Spread
-3 Min Accuracy
+6 Max Accuracy
+2 Projectile Count
There is one unique accessory, the Carnage has a variant of a Vertical Grip that gives an additional +3 Mag Size, +4 Weapon Spread, and +2 Shot Cost on top of the original bonuses.

Barrel

Bandit E-Tech E-Tech Hyperion Hyperion
+4 Weapon Damage
-8 Fire Interval
+1 Mag Size
-14 Weapon Spread
-3 Min Accuracy
-10 Impulse Accuracy
+8 Projectile count
+2 Shot Cost
+3.5 Weapon Damage
-3 Fire Interval
-5 Reload Time
-5 Impulse Accuracy
-5 Projectile Count
+1 Shot Cost
+2 Status Effect Chance
+5 Weapon Damage
+0.5, -3 Fire Interval
-5 Reload Time
-2 Weapon Spread
-0.5 Max Accuracy
-5 Impulse Accuracy
-5 Projectile Count
+1 Shot Cost
+2 Status Effect Chance
-4 Weapon Damage
-2 Mag Size
+7 Weapon Spread
+5 Min Accuracy
+2 Impulse Accuracy
Jakobs Tediore Torgue
+2 Weapon Damage
-5 Fire Interval
-10 Weapon Spread
-2 Min Accuracy
-15 Impulse Accuracy
+4 Projectile Count
+1 Shot Cost
- +6 Weapon Damage
-12 Fire Interval
+2 Mag Size
-18 Weapon Spread
-4 Min Accuracy
-18 Impulse Accuracy
+11 Projectile Count
+3 Shot Cost

Pretty much every unique weapon has it's own unique barrel, click here for full list of them and their stats.

Bodies

RarityWeapon DamageMag SizeWeapon Spread
Common - - -
Uncommon +8 +3 +3
Rare +16 +5 +5
Very Rare
Pearlescent
Effervescent
+24 +7 +7
The Pearlescent and Effervescent shotguns each use their own unique copy of the Very Rare body, all with the same bonuses.
The Overcompensator uses a unique copy of the Very Rare body, with the same bonuses.
The Moonface uses a unique copy of the Rare body, with the same bonuses.
The Boomacorn and Too Scoops both use their own unique bodies with no bonuses.

Grips

BanditHyperionJakobsTedioreTorgue
+5 Mag Size
-2 Reload Time
-3 Weapon Spread
-3 Weapon Damage
+3 Weapon Spread
+2 Accuracy Regen
+4 Weapon Damage
-3 Fire Inteval
-1 Reload Time
-2 Impulse Accuracy
-2 Weapon Damage
-2 Mag Size
+4 Reload Time
+3 Weapon Damage
-2 Reload Time
-2 Weapon Spread
-3 Impulse Accuracy
The Bullpup uses a unique copy of a Hyperion grip, with an additional -0.3 Reload Time and +10 Mag Size on top of the original bonuses.
The Boomacorn and Too Scoops both use their own unique copies of a Jakobs grip, with the same bonuses.

Sights

NoneBanditHyperion
-0.25 Weapon Spread
-2 Movement Speed
+3 Zoom FOV
-0.25 Weapon Spread
-2 Movement Speed
+18 Zoom FOV
-0.4 Weapon Spread
-2 Movement Speed
JakobsTedioreTorgue
+14 Zoom FOV
-0.5 Weapon Spread
-2 Movement Speed
+6 Zoom FOV
-2 Movement Speed
+4 Zoom FOV
-0.2 Weapon Spread
-2 Movement Speed


Stocks

BanditHyperionJakobsTedioreTorgue
- +8 Min Accuracy
+4 Accuracy Regen
+10 Min Accuracy
-5 Max Accuracy
-5 Accuracy Regen
-2 Impulse Accuracy
-3 Min Accuracy
-3 Max Accuracy
+2 Impulse Accuracy
-4 Accuracy Regen
+5 Impulse Accuracy
The Boomacorn and Too Scoops both use their own unique copies of a Jakobs stock, with the same bonuses.

Element

There are no unique elements, and none of the non-unique ones have any bonuses.

Material

Quartz GemstoneOther GemstoneOld Hyperion
+0.15 Crit Damage
+0.15 Reflect Off Self Chance
-0.8 Reflect Off Self Self Damage
-0.2 Reflect Off Self Damage
+0.15 Crit Damage
+0.15 Reflect Off Self Chance
-0.8 Reflect Off Self Self Damage
-0.3 Reflect Off Self Damage
+0.7 Weapon Damage
+0.5 Fire Interval
+0.15 Reload Time
+0.5 Weapon Spread
+2 Min Accuracy
-0.3 Max Accuracy

Manufacturer Bonuses

ManufacturerBarrelGrip
Bandit +0.05 Weapon Damage
-0.2 Impulse Accuracy
+3 Mag Size
-0.3 Reload Time
Hyperion +0.1 Weapon Damage
-0.15 Weapon Spread
+0.2 Impulse Accuracy
+1 Mag Size
-0.3 Reload Time
Jakobs +0.1 Weapon Damage
-0.15 Weapon Spread
-0.2 Impulse Accuracy
+2 Projectile Count
+1 Mag Size
-0.3 Reload Time
-0.2 Impulse Accuracy
Tediore - +2 Mag Size
-0.15 Reload Time
Torgue +0.2 Weapon Damage
-0.05 Fire Interval
+1 Mag Size
-0.3 Reload Time

E-Tech BarrelHyperion Barrel
On Bandit
+3 Mag Size
+4 Weapon Spread
+2 Projectile Count
+1 Shot Cost
On Jakobs
-0.4 Weapon Spread
There are several unique parts with manufacturer bonuses. As these are restricted to spawn on a single weapon with a set manufacturer these are of course either always or never active.

Barrels

Conference CallDogTidal WaveBoganellaBullpup
On Hyperion
-0.15 Weapon Spread
+0.2 Impulse Accuracy
On Bandit
+0.05 Weapon Damage
-0.2 Impulse Accuracy
On Jakobs
+0.5 Weapon Damage
-0.15 Weapon Spread
-0.2 Impulse Accuracy
+2 Projectile Count
On Bandit
+0.05 Weapon Damage
-0.2 Impulse Accuracy
On Jakobs
+2.3 Weapon Damage
-0.7 Weapon Spread
-0.2 Impulse Accuracy
BullpupJack O' CannonToo ScoopsViral MarketerParty Line
On Hyperion
+0.2 Weapon Damage
-0.25 Weapon Spread
+0.25 Impulse Accuracy
On Torgue
+6.8 Weapon Damage
-0.05 Fire Interval
On Jakobs
+0.1 Weapon Damage
-0.15 Weapon Spread
-0.2 Impulse Accuracy
On Hyperion
-0.15 Weapon Spread
+0.2 Impulse Accuracy
On Hyperion
-0.15 Weapon Spread
+0.2 Impulse Accuracy
Flayer
On Jakobs
+0.1 Weapon Damage
-0.15 Weapon Spread
-0.2 Impulse Accuracy
+4 Projectile Count

Grips

BoomacornToo Scoops
On Jakobs
-0.3 Reload Time
-0.2 Impulse Accuracy
On Jakobs
-0.3 Reload Time
-0.2 Impulse Accuracy