My Meostar doesn't tunnel....at least not if you're talking about what scope tunneling actually is. No offense, but I've read posts from quite a few that don't know what the term actually means.
It has nothing to do with the scope's eye box or eye relief. You'd also be surprised that some of the most expensive scopes made actually have a slight tunnel affect at certain mag ranges.
Scope tunneling is when your FOV remains the same despite lowering the magnification.
Those expensive scope companies will point out that despite the FOV staying the same, theirs is still wider than most lesser scopes.
The most common confusion is mistaking a finicky eye box for tunneling.
I'll spare everyone the confusion that circulates on the whole "eye box" subject.
I thinks it's very difficult, and somewhat careless, to make bold statements about a particular optic unless you've spent some time with it. At a minimum, outside and mounted in a shooting situation.
That's one reason I have very little to say about Leupolds. I don't own one, I have looked through and examined the controls. But outside, on a rifle and actually using it , I haven't.
Everyone's eyes are different and there's good glass galore these days at every price point.