Same here this past week on X Series.
'Missing' so many mid range shots with the NTW 50 that I literally have to stop playing due to the frustration.
Another thing I'm noticing is how jerky the enemies are when trying to line them up using the 4 zoom default scope.
Not sure if its the animation but so often they almost appear to be teleporting one foot away from where they are just as I am about to shoot. So I move the sight to the new position and they jump back the other way!
Incredibly frustrating.
And of course as soon as an enemy sees me I'm pretty much insta dead in shorter ranges.