Schmidt and Bender if that's to pricey one of the higher end Nightforces. We can keep going down from here. But if you want the best. There is no need to go lower then a Nightforce.
The huskemaw is an excellent long rangw scope for a hunting rifle, yes there are many that are better for long range shooting, but most them weigh north of 2 lbs and some are pushing 3 lbs. If weight matters, the blue diamond is an excellent choice.