if you want to have the same settings it is generally recommended to go from the game that is more restrictive to the game which is less restrictive so you can use the same 360 distance you can just change your fov / ads vlaues slightly to use properly scaled values (fov= 70.5328 ) in your ini file
Siege
Sensitivity 1:
MouseYawSensitivity=15
Sensitivity 2:
AimDownSightsMouse=26
Multiplier 1:
MouseSensitivityMultiplierUnit=0.02
Multiplier 2:
XFactorAiming=0.059395
360° distance:
2.7925 inches
Config FOV:
DefaultFOV=70.5328
Actual VFOV:
70.53 degrees
Actual HFOV:
103 degrees
now that i am typing this let me just take a quick second to notify you your incredible high edpi(dpi+ingame value) of 19,530 not recommendable whatsoever (for most fps games 2000 to 4000 is common )
https://jscalc.io/calc/vqOrqXRpMgmwb8tV
if you dont want to hinder yourself in the long run give this a try
you might actually be a good test subject for the new slower scaling method