I had not been able to aim/shoot with stability since the recent xbox 1 and Hammer Storm updates. I didn’t play for several days, but when I resumed after both updates were installed, my aiming was horrible. I noted that there were more trigger options and selectable states in the “Xbox Accessories” controller app. After trying many fixes, I eventually noticed that I had 2 “Xbox Accessories” controller apps: a green one that was originally released and a blue one that was released with later updates. I uninstalled the old green one and performed a hard restart of my XB 1.
Aiming is much better now… Perhaps there is a conflict between the apps?