Every few basic attacks, or against a target she has trapped or netted, Caitlyn will fire a headshot dealing bonus damage that scales with her critical strike chance. On trapped or netted targets, Caitlyn's Headshot attack range is doubled. Every 6 attacks fires a Headshot, dealing 27 (50% + 125 Critical chance) bonus physical damage. Trapped or netted enemies trigger a Headshot that has double range.
Attacking from brush builds Headshot twice as fast.