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This article is about the stat. For the item, see Bullet Lifesteal (item).

Bullet Lifesteal is a stat that causes a percentage of bullet damage dealt to be regained as health.

Math

Despite being presented in-game as +X% Bullet Lifesteal, different sources of bullet lifesteal stack multiplicatively, not additively. With $n$ different sources of bullet lifesteal, final bullet lifesteal $B{L}_F$ is given by:

$B{L}_F=1-\prod _{i=1}^n(1-B{L}_i)$

where $B{L}_i$ is the bullet lifesteal provided by the $i$th source.

Example

With 10% Bullet Lifesteal from Crippling Headshot and 35% Bullet Lifesteal from Leech, final bullet lifesteal is:

$B{L}_F=1-(1-0.10)\times (1-0.35)=41.5\mathrm{\%}$

Note that the in-game user interface is inconsistent in how it rounds the final number.

Sources

This is a dynamic list "Bullet Lifesteal". Edit contents.

Name	Cost	Category	Stat change
Active Reload	1,600	Weapon	+16% Bullet Lifesteal
Frenzy	6,400	Weapon	+10% Bullet Lifesteal
Bullet Lifesteal	1,600	Vitality	+13% Bullet Lifesteal
Fury Trance	3,200	Vitality	+14% Bullet Lifesteal
Leech	6,400	Vitality	+25% Bullet Lifesteal
Vampiric Burst	6,400	Vitality	+13% Bullet Lifesteal
			+70% Bullet Lifesteal