out of experience id recommend using this setup for the calculator
this would apply to look something like this
and would allow for uniform hipfire / ads ( less log time training)
only down sight to this given method would be, that siege does not currently support scope scaling (so you either swap your ads setting in game depending on the scope that you are about to use or mess up your brain every time you use the wrong scope ,and end up sticking to 1x since those are uniform with ads and all weapons )
fun fact this given method is used as default ads scaling in apex legends
( and there has been some petitioning <----(check this out )going on for a while now to get this or at least more options into siege )