Vortex failure rate is rather high and tracking often is nothing to rave about too. A few models are better than others but overall they are not as durable as scopes like Sightron or SWFA. That is why i suggested the Diamondback HPs if you are looking at less expensive Vortex. Their track record seems better than average.

SWFA runs those sales a couple times a year. You simply wont find a better tracking and more durable scope for anywhere near that kinda money. The 10x42 was originally the Navy Seals sniper contract scope.
http://swfa-ss.com/history


Here is my 10x42 Mil-Quad with a STAC 4-20x50 above it. Seekins low rings and a Murphy rail.