If you can pop over $2,000 for a scope then the high powered March or Schmidt & Bender variables would top the list. Otherwise for around $1,000 the Nightforce 12X42 BR model is very good and offers a lot of recticule choices. I own a couple of the NFs and have been very satisfied with their performance. In the under $1,000 range the new Sightron has good glass although they don't have a rectiicule yet that I'd like.
Leupold is missing the boat by not offering an equivalent scope for long range competition, especially with the passing of Dick Thomas who performed wonderful power boosts on Leupold scopes. I've got to wonder at their market research and product developement management.
And I own a bunch of Leupold scopes too so I'm not just "bashing" Leupold, I'd just as soon have a suitable of decent quality -45X range variable Leupold so I'm irritated that they are ignoring my market segment. And have for many years.