First use was at 4000' above sea level in 66 degree weather and was already picking up some heat waves. Hope it doesnt let me down in August & September when its really hot in Nevada. Also wish there were a few more power increments between 12 to 24 power. I love the reticle easy to correct quickly, easy to install zero stop, easy to level and hope the illuminated reticle works as it should. Only scope I found in same price range I would consider since this scope is so hard to find is SWFA 5-20 *50 in HD for a couple hundred bucks more. Another great reticle, I looked through both just preferred the Vortex slightly.
Pros: Reticle is awesome,30mm tube rings eay to find, levels quickly due to flat turret caps, ZERO stop is easy to install!
Cons: Scope jumps in power quickly from 12 to 24, wish it would of included thumb lever.
This review was written in the old system and had content requirements that are different than reviews written today.