The Math Behind 1:1 Scoping
Why 1.0 is technically wrong
In Counter-Strike 2, the default zoom_sensitivity_ratio_mouse is set to 1.0. Most players assume this means their scoped sensitivity is perfectly 1:1 with their un-scoped sensitivity.
This is a common misconception.
Because zooming in lowers your Field of View (FOV), your screen essentially becomes a "magnifying glass". Moving your crosshair 100 pixels while zoomed in actually rotates your character significantly fewer degrees than 100 pixels un-zoomed.
Focal Length (0% Monitor Match)
If you want small, precise AWP flicks (near the center of your crosshair) to use the exact same muscle memory as a rifle micro-flick, you must use 0% Monitor Match scaling.
To achieve this 1:1 ratio at the focal point in CS2, the required math dictates a zoom sensitivity of 0.818933. By pasting our generated command into your developer console, your sniper flicks will instantly feel identical to your AK-48/M4A1 hipfire.
Wait, does my Resolution or Aspect Ratio change this?
No. Whether you play on 16:9 Native (1920x1080), 4:3 Stretched (1280x960), or 16:10, your vertical FOV in CS2 remains locked at exactly 90 degrees. Because focal length scaling is mathematically tied to the vertical FOV, the perfect zoom ratio of 0.818933 remains universally correct for all aspect ratios.