Sorry it's been a long day and I didn't english good in my original post.
I know they are all independent, I was only using BF as a reference for how the aim feels when you use USA in BF
What I meant regarding the Hunt ironsight value is that it feels really slow and sluggish compared to my hunt showdown hip fire, not rainbow six. When I'm aiming in Hunt showdown, I don't have a problem snapping to targets with hipfire but when I ADS (using the converted sensitivity from the calculator) I'm always way to short when trying to snap. By like half the distance. So something there is not cooperating with my muscle memory.
Ultimately what I am trying to do is have a sensitivity that feels the exact same for Rainbow Six hipfire, Rainbow six 1x ADS, Hunt showdown hipfire, and Hunt showdown ironsight ads. Basically a manual version of BFs USA. Sorry, I've never used the calculator before so I might just be using it wrong. That's totally possible lol.