I posted a video in the gunslingers forum that shows exactly what im clicking (i know the abilities are named different for snipers), but it might help
When i parsed this the other day i was in:
36/3/7
Full PVE 72 (fully optimized) except for 2 63 armorings for the 2-piece set bonus for Flyby/Orbital Strike (extra tick)
Also make sure to get all your cunning/aim datacrons and max out all your companions affection as well as complete all conversations with them
http://www.torparse.com/a/435421/1/0/Damage+Dealt <- 3084
<- rotation video
Hope this helps