Strange behavior with moving location of Eyeball

So I want to place an eyeball into the right location inside a head.

I am trying to move a sphere along a certain axis, but no matter what, the placement is off!

It doesn’t matter if I’m using G or dragging an individual colored axis!
I’ve uploaded the blend file - any help is appreciated!


Here is the Blend file

Attachments

head_eyeball.blend (606 KB)

OMG - sorry to waste everyone’s time… SOLVED

I had snap turned on… duh!