Disclaimer: There is almost no new info in this thread: most things in here comes from @Lootturtle and @Sljm’s work on BL2 (original work now lost to the old forum archive)
Additional credit to @Kringled, @Derch, @DSs, @Exotek and myself.
Before we start, a word about the 3 different types of crit modifiers:
Type A is the most common, it’s generally what you get when you have a crit bonus.
Type B or “Jakobs type” only comes from a handful of guns, 95% of them Jakobs. Generally considered more valuable (and is often referred to as a “multiplicative” bonus.)
Type C is not a “bonus” as it’s impact is negative. Assault rifles and some E-Tech guns have it.
the Critical hit equation is as follow:
Crit Damage = Damage * 2 * (1 + .Type A) * (1 + .Type B) / (1 + .Type C)
Guns:
(Note: generally, when a gun has more than one type of bonus, the card value will be incorrect.)
Basic guns:
Jakobs snipers : 160%
E-Tech Snipers : 100% and 100%
Other snipers : 100%
Hyperion lasers : 50%
Jakobs Shotguns : 15%
Jakobs pistols : 25%
Jakobs Assault rifles : 15%
E-Tech Assault rifles : 70%
Other Assault rifles : 20%
Unique guns:
Fremington’s Edge : 100%, 175% when scoped
Morningstar : 100%+ (uses a hidden stack mechanic)
Cobra : 110%
Chère-amie : 120%
Lyuda : 125%
Longbow : 150%
Hawk Eye : 580%
Bad Touch : 70%
Good Touch : 70%
Bitch : 75%
Crit : 150%
Heartbreaker : 50%
Interfacer : 60%
Fibber with 3rd barrel : 700%
Lady Fist : 800%
Hail : 20% and 200%
Striker : 15% and 50%
Stomper : 15% and 50%
Bekah : 15%and 50%
Judge : 25% and 30%
Rex : 25% and 30%
Unforgiven : 25% and 75%
Damned Cowboy : 32.5%
Rubi : 7.5%
Veritas : 10%
Gwen’s Head : 37.5%
Grog Nozzle : 200%
Gun modifiers:
Snipers critical hit accessory : 20%
Shotguns critical hit accessory : 50%
Pistols with Hyperion Barrel : 7.5%
(Warning : Gemstone guns were never thoroughly tested)
Gemstone Jakobs Shotguns : 6.5%
Gemstone Jakobs pistols : 6%
Gemstone Jakobs Assault Rifles : 6.5%
Other Gemstone Assault Rifles : 9%
All other Gemstone guns : 7.5%
Skills:
Axton’s Ranger : 1% per rank
Krieg’s Pain is Power : 5% per rank, 15% while on fire
Maya’s Mind’s eye : 5% per rank
Salvador’s Gunzerking : (both gun’s bonus count)
Salvador’s Quick draw : 2% per rank
Salvador’s Lay waste : 5% per rank
Zero’s Headshot : 4% per rank
Zero’s Killer : 10% per rank
Zero’s Velocity : 1.5% per rank
Zero’s Kill confirmed : 1.6% per stack per rank
Zero’s Critical ascension : 6% per stack
Gear:
(Max stats at OP8)
TTaoDK class mods with the evil prefix: 54%
Zero’s Legendary Hunter COM: 38%
Zero’s Sniper COM: 48%
Zero’s Legendary Sniper COM: 51%
Zero’s Killer COM: 54% (team bonus)
Zero’s Legendary Killer COM: 57% (team bonus)