I had my trouble with it, but i found the cause.
If you change the FoV (also other resolutions or aspect ratios) every low Zoom ADS changes back to 16:9 if the setting "ADS Field of View" is at indipendent. Which is almost needed if you want to aim with pistol scopes, they are so far away otherwise. The thing is your DPI is screen (pixel) related, which means with the FoV reduced your sense is now much higher, while aiming. Higher sens plus also a different visible picture size, screw me completly.
I never had that with an other game.
As aiming with pistols sucks i am now trying to get around it with calculating/testing by reducing the Low Zoom multiplier.
