One of the vendors on Commercial row at Camp Perry always used to put several spotting scopes on a stand outside, that you could look through to see the differences. Not sure if they are still doing that as that event is coming up in the next couple weeks.. always nice to get an eyeful before you drop the cash, and Optics that work well are not inexpensive. A cheap spotting scope with low end glass isn't going to allow you to see .22 caliber holes at distance. Buying a bunch of low end spotting scope to try and find a good one isn't a winning option either, you'll spend as much if not more on several cheaps scopes as if you just bought a good one to begin with.
I prefer an angled eyepiece, the scope can be setup next to your shooting position so you can look between the rifle sights/scope to the spotting scope easily with a turn of the head, without having to leave your shooting position. A straight inline eyepiece does not allow you to do this easily.
High end optics are going to be Kowa, Leica, Swarovski, Zeiss, Meopta these range from $1500.00 and UP, honestly I don't think there's an upper limit on optics pricing. for long ranges (500Yds+) these are pretty much your choices.
The Vortex Viper HD line should work well out to 300 yds, and maybe a bit more distance for the Vortex Razor HD line. in a midrange pricing $600-1200.00 https://www.amazon.com/dp/B003AVGRB2/
Celestron has some high power spotting scopes, that may work for you, the image quality may not be superb at the highest magnification levels. A lot of people like these for high magnification with budget level pricing.
Any of the sub 100 dollar scopes you see everywhere 20-60x aren't going to allow you to see .22 cal holes at 100 yards. imho they are a complete waste of your money. Fully agree with JimE on this one, better off saving your money.https://www.targettamers.com/guides/bes ... ification/https://targetcrazy.com/optics/spotting ... -shooting/
Another option might be one of the many camera systems available, depending on where you shoot.. Since you put the camera near the target and view the image on a tablet or Laptop for a modest amount of cash you can see the target hits at some really long ranges for less that you would spend on high end optics. Bullseye cameraTargetvision
Negative is you have to put the camera downrange and if there are other people on the line you don't know.... best use is a private range or club where you know the other members.
What else can the cameras not do ? See bullet trace for long range shooting. If you have a spotter setup by you when shooting long range, with a good spotting scope they can see the bullet trace when you fire and tell where the round went. Very handy when you get out to 600 yds plus and are trying to get on target. (think Appleseed shoot where you have the option to shoot on a 600 yd range, there are several in Ohio)
The plus side of the camera systems is being to easily see your target hits, at great distances, without spending a ton of money on expensive optics.
Some of the software features that are nice. ability to mark your shots on screen, Blinking last shot, replay shot sequence, multiple shot sequences, aid in sighting in a rifle.
If there's a local bird watching group near you, see if you can hook up with them to find out what they are using.. birdwatchers get into some insane optics. they are the only ones I know that might spend more on optics than Long distance shooters. They should also have suggestions for someone just getting into the hobby looking for budget optics. or may even have some used ones to sell that they no longer use. Just another way to get your eye on some glass.
As they say, Buy once, Cry once.
best of luck. let us know what you end up with after you make your purchase, and how it's working for you.