Abilities:
Piltover Peacemaker: Caitlyn revs up her rifle for 1 second to unleash a penetrating shot which deals physical damage (deals less damage to subsequent targets).
Yordle Snap Trap: Caitlyn sets a trap to reveal sneaky yordles. When sprung, the trap immobilizes the champion and deals magic damage over 1.5 seconds.
90 Caliber Net: Caitlyn fires a heavy net to slow her target. The recoil knocks Caitlyn back.
Ace in the Hole (Ultimate): Caitlyn takes time to line up the perfect shot, dealing massive damage to a single target at a huge range. Enemy champions can intercept the bullet for their ally.
Headshot (Passive): Every 8 attacks (attacks while in brush count as 2), Caitlyn will fire a headshot, dealing either 150% damage to a champion or 250% damage to a minion.
Contrary to popular belief, you dont HAVE to be a bush to stack this up
Yeah, it averages out to blah blah, but the extra damage only affects ONE shot. So yes, it would still average out to 550% damage, and technically it would be 110% per shot average, but that's completely neglecting the fact that you probably wont be using all 5 shots on 1 thing, or heals, or anything in the game that's a variable.