PoE Akarenji, Projectile builds

As I approach the end of my first campaign run, I've spent several hours in PoB trying to make an Ice Shot Deadeye build and would appreciate any feedback on whether I've missed any glaring gameplay mechanics, adjustments etc that could enhance the playstyle further. Things I'll address: \- I know I need a reliable way of generating endurance/ brutal charges, but haven't fully decided how to do this yet, so I'm running enduring cry. I'll most likely buy the jewels which give minimum charge. \- I prefer critical damage over elem