I would completely disagree with anyone that says a riflescope can replace a good spotting scope.
A spotting scope is much more useful in the field if you know how to use it properly. I carry a nice set of 10x42 binoculars (just purchased Leica Noctivid) for scanning mountainsides and picking out critters that are more clearly visible. I will break out the spotter (Swarovski ATX) if I see animals at ranges the binoculars cannot make out details on. But I will also sit down for long glassing sessions with my spotter scanning all the nooks and crannies and dark shadows under trees at long ranges. I have found more bedded and partially hidden animals that my binoculars missed than I can remember by spending long periods behind the spotter.
A riflescope would be ok if you only want to have a quick look at an animal you have already located with binoculars, but it would very ineffective and uncomfortable for scanning to find hidden critters.
I tried leaving the spotting scope behind a couple times over the years whike heading into the high country thinking my 4.5-30x riflescope would be good enough. Both times I ended up cussing myself for not bringing the spotter. Never again. In my opinion from many years of hunting high country in the Rocky Mountains, wide open plains, and river breaks of Montana, there is no riflescope on the planet that can replace a good spotting scope for if you want to have a higher success rate at trophy hunting.
I like doing everything possible to increase my chances on bucks like this one I took 2 years ago. A good spotting scope is an absolute "must have" in my book. I spent 4 days on this hunt and what seemed like endless hours behind my spotting scope before finally locating this Bruin in his bed then ultimately making the stock and putting him to rest. 201-2/8" B&C
View attachment 129118