Setting alternative Bootstrap Navbar break-points

Hi, I am trying to get my Bootstrap navbar to behave a certain way. I’m using a collapsible nav (so it goes to a drop down when on mobile). It looks fine full screen. It looks fine in mobile view. However somewhere in between Bootstrap starts stacking items on the bar in a way I don’t want.

How do I tell Bootstrap that once it hits a certain transition point (likely ‘large’) to go straight to the ‘mobile’ version view ?

I’ve tried some potential solutions I’ve seen on the web but none of these have worked.