Re: basic question about doping scopes
Welcome.
How do you mean "ruin"? I mean, there SHOULD be no reason a scope should care how far it is clicked in the up and down direction (provided you dont over adjust the range of course).
Provided you have enough adjustment in your scope to get to your target, it sounds like you are wondering about durability. I think that is definitely something to consider, especially on a lower end scope. Often the adjustment or click can be inconsistent, irregular or simply just off (ie .25 moa click = .32 moa travel. etc). If the adjustments are not repeatable or predictable, then that scope will simply not work for any kind of precision shooting. Some scopes will "stick" and not actually adjust even though you are clicking the hell out of them. Not good.
Have you considered a ranging reticle like mil dots etc? With a 100 yard zero you could reach out accurately to a pretty good distance without ever having to dial anything at all.
Any quality scope will not have a problem dialing for shots, but lesser ones may/probably will have some issue/s.
It is also notable that most "better" quality scopes will have a good level of warranty and customer service that could be lacking with other companies.
What scope are you looking at/ have?
On a tight budget the swfa SS or nikon buckmaster/prostaff will do quite well. The best thing i can suggest is to test whatever scope you decide to use. Look up box test etc and give it a try.