Does the Sharpshooter feat take Critical Power into account?
Yes, it takes all of your critical damage above 100% into account regardless of the source.
For example, I use a Spearhead rifle, which only has a 90% crit damage bonus.
Spearhead has 100% critical damage, just like any other frame except for reaper which has 125%.
Just making sure that the feat is "smart" enough to be based on the current critical bonus when focused using Sharpshooter.
It is.
To spare you some planning, the highest critical damage bonus you can achieve with spearhead is 300%.
100(base) + 30(sharpshooter) +50(anatomically-aware scope ) = 180
180 + 80*1.5 (critical power)= 180 + 120 = 300