Re: nikon or busnell or simmons rangefinder----which one???????
I've got the Bushnell 1500 elite, had it for over a year. I've had it range 1500+ under ideal circumstances, can almost always get 1000 if I demonstrate a little tenacity (even on a pretty shallow grass hillside, hardly an ideal reflector), and get a reading every time at 800.
I don't believe anything out there is dramatically better until you get to the Swaro $ range. I haven't used the Nikon although I don't doubt it could do what you ask as well.
Empirical results rule!