I spent over $1k a few years ago on a scope and it got me out to 1k yards with .308. I read a lot and in the end, I wanted to minimize the risk of getting a dud and having to start over. I'm now seeing <$250 scopes with lifetime warranty that a reviewer says:
Specs are good too at 8-32x44.
So...
http://spindriftfresh.com/wp-content/uploads/2016/08/Spindrift-SparklingWater-Dropdown.png
Was having some trouble with spindrift but tried a few swigs and it straightened itself out.