Very impressed with the optic and build quality of the recently introed Athlon Optics Helos 8-34x 56mm. Just under $600 gives you HD glass and advanced coatings, Argon gas fill, waterproof, and illum reticle control & battery incorporated with the side-parallax turret. Has locking turrets with easy zero set and can be setup for zero stop.
I have owned Nightforce NXS 8-32x (in 2007) and sold it within 5mos because it was heavy and had mediocre optic performance. The Helos is a great value in a longrange suitable field or bench scope. Also comes in 6-24x 50mm obj. Forgot to mention it is a 1st Focal Plane scope.
At $1800, Athlon has the Cronus BTR, a 4.5-29x 56mm scope that is made in Japan by Light Optical Works; same guys who build scopes for March & NF, and others. I have tested this scope at 1100-1600yds and it is superb. By early August, Athlon should be receiving their new 4.5-27x Ares which is Assembled in China from Light Optical lens systems and internal components. This scope will sell for $850ish. If you want superb quality and value; the Athlon Ares will be worth evaluating.
Catalog download link here <www.athlonoptics.com> Link at bottom of homepage.
The Athlon Midas series is a 2nd Focal Plane model that is also a great value. Very similar features as Helos, but no locking turrets, at about same under $600 price. I have the 4.5-27x w/moa reticle. Really a fine scope.
Disclaimer: I am an Athlon dealer affiliate and as such am biased towards delivering best value and best optical and control performance for the money. Try a Helos or the sub $400 Argos BTR scopes and see for yourself. There is one drawback to the 8-34x 56mm model and that is somewhat limited W&E movement which is listed at 13mils. You will need a picatinny rail with 20moa gain to shoot past 1000. Most guys will be using an moa gain rail.
As for 1500 with a 7mm rem mag. Might be a bit ambitious. 7mm STW, 7mm RUM; you'd be okay. If you are looking for ultimate clarity and resolution performance at 1mi or longer; the Cronus BTR is worth the money. 34mm tube, 32mils E&W probably no need for a gain rail.