Technically, the Nikon is a handgun scope. But that doesn't mean that it won't work in a scout rifle setup. However...
If you plan to hunt with the rifle, consider that the Leupold 2.5x Scout scope has a 22' FOV (field of view) @ 100 yards (click on the Specifications tab on the link):
The Nikon 2.5-8x handgun scope has only a 13' FOV @ 100 yards at 2.5x, and a mere 4' at 8x (click on Technical Specifications on the link):
The Leupold is likely lighter in weight too.
Personally, I would choose the Leupold for hunting, as it would be better for quick target acquisition (especially if the target was moving). Keep it simple and rugged with a fixed power is my suggestion for typical levergun applications. Don't mean to put down the Nikon, as I'm sure it's a quality piece, but don't think that it will excel as a scout scope for hunting.