(1.25x Iron Sight, Red Dot, Holo, Reflex) and (1.25x Scope) aren't the same thing? Why are there two different numbers?

1 hour ago, checheju said:

(1.25x Iron Sight, Red Dot, Holo, Reflex) and (1.25x Scope) aren't the same thing? Why are there two different numbers?

Different FOV, as scopes and ADS attachments does not use the same FOV. However, if your conversion method (for instance Monitor Distance Vertical 0%) matches the setup in the game (Coefficient 0), then the actual sensitivity values will be the same.