I have one, its very consistent to 900, after that, it better be first or last light. From there, ive got it to 1150.
Great all around hunting rangefinder, not for extreme range though.
Brother in law has the bushnell arc 1 mile and that does considerably better past 1000 yards. however, its bulky, and i just like leupold better. Over 1k is not practical for my use, so the leupold fits me well.