To be honest, binoculars are cheaper, will get more usage than a dedicated range scope, and for me as a shooter, much easier to use.
I don't own a spotting scope, but I do have a nice pair of binos in my range bag. I think they are Leica. I got them on close out about 6 or 8 years ago.
So much easier to take a couple of shots. Open the bolt, rest my elbows on the table or the mat and zero in with the bino's instead of getting up from prone or off the bench and continuing to squint into a new piece of glass.
But that is just me. YMMV.