Am I wrong? I'd really like to know, because my DPS is pretty bad, never had it that bad with a fresh 50 before.
Concentrate on FTs, try to use it every time it's ready. That means you need to proc it with Snipe/Ambush/Takedown within the 4.5 sec (3 GCDs) before it's ready again. Like Tibbel says, you only have 3 seconds to use any other skill, this is where you try to fit in prioritized skills like OS, SoS, EP etc. they're almost never lower in priority than FT.
Snipe+FT is actually amazing, just don't spam Snipe when you do not need the FT proc. Try to use Explosive Probe and Corrosive dart when the other fillers are on CD.. or just a rifle shot.
I typically open on a boss with Laze Snipe-FT-Ambush-SoS-FT.. then I must start to see what's available and good to use. Thinking ahead and knowing a boss fight is essential to max DPS.
Another thing is your stats, Snipers are very dependent on balancing everything. We can't stack only Power, we need Crit and Accuracy too.