From what I see on various public shooting ranges very few people use a spotting scope.
More people should try it.
It great to be able to see your bullet holes without having to call a cease fire and walk downrange.
Now, if you are shooting a rifle with a powerful (15X or more magnification) and big-lensed rifle scope, maybe that will fill the role of a spotting scope for you.
But even a cheap spotting scope is better than an ordinary deer rifle hunting scope forcseeing holes in paper.
Here’s a spotting scope for sale at Harbor Freight for $39.
I’ve looked thru one of these, and it’s OK for an entry level scope that should be able to show your bullet holes at 100 or 200 yards.