My personal experience.. Lvl14.. The last few days I have been doing some random queue dungeons.. About 20 runs, only once I met a lvl10 monk who is tanking, didn't exam his gears but his health went down to critical 10% sometimes when he pulls big time.. I run a hunter, using bc gears with sockets, engin ROTP gears, jc ROTP gears, and pair of ROTP tsunami.. I manage to 1-2 shot sometimes.. I didn't do the precise calculation, it's visual estimation.. When the other 4 players were reducing the target's health gradually together, i say it takes the 4 players over 5 seconds to bring the health from 100 to 50%, I fire an aim shot and a big chunk of that health was removed instantly, sometimes as high as 80-90%.. My lvl10 hunters with all socketed gears cant do that