I own three Zeiss Conquest scopes and find them to be excellent scopes and value/$$. The Zeiss Conquest 3-9x40 can be found for $400 now, as well. That being said, I don't see a need for a scope in the 9X range for a 200yd rifle in .375, personally. It's more scope both in size and power than you need atop that .375, IMO.
I'd suggest another scope I have which is just as nice to my eye, glass-wise, and is somewhat smaller in both size and magnification; the Leupold European 30mm 2-7x33. This scope has very good eye relief (something really useful in that caliber rifle) and the "eyebox" is very forgiving. A 30mm tube seems to my eye to be more forgiving in eye placement and also seems a bigger FOV.
The cost is similar at around $430., and I'd think this scope to be a perfect match for that .375. Ruger will take in trade the rings (1") that come with the rifle for 30mm ones, BTW. Mine has the German #4 type reticle, which I really like, have a look at it. It's a great hunting reticle.