I use a 3x9 Conquest on my 375 and simply love it. It replaced a Leupold. The Zeiss has held up nicely so far, approximately 600 rounds.
I don't think the Conquest 6.5x20 is available for delivery for a few months yet.
Also, I believe the big Leupold scopes have more MOA adjustment since the Conquest is a 1" tube.
Nevertheless, the optics in the Conquest are great. Very bright and clear. The 375 is my all around hunting rifle and the 2x9 is just the ticket for that rifle.
I am in the market for a long range scope
to replace a Weaver V-16 on my quarter bore. I am waiting for some in depth specs from Zeiss before I make my decision as their web site is not nearly as informative as the Leupold site.
Additionally, the click stops on the Conquest are crisp and repeatable. I played with the 375 at 200 yards and the windage and elevation adjustments were spot on. No change with power increase or decrease.
As much as I like the Conquest scopes, I'll use a Leupold if the MOA range is not there with the Zeiss units.