Hi!
So I’ve tried perfectly lining enemies up. Attacking the closest, attacking the furthest, attacking while I’m close, attacking from afar…
No matter what, I only ever damage my target, even though the Penetrating Shot ability says it should be hitting everything in a line.
Anyone know what gives? Or what I’m potentially doing wrong?
Have you specced Scatter Shots?
I haven’t yet (hence “unfeated” in the thread title), it’s a new character.
I figure the feat will do what it says it does, but that’s separate from the ability itself not doing what it says it does. 
This is one of the legacies of the ranger revamp that happended shortly after the release of ROTG expansion… 
You need to target the furthest one away and pen shot will hit everyone in-between you and the furthest mob.
It can be a lil buggy or miss at times…
https://cutt.ly/YjuOinb You can use this build 
The description of the Penetrating Shot combo itself doesn’t actually say it hits multiple targets, only the Scatter Shots feat has that in its description - have to have that feat.