At least get one that is rated for double your anticipated shooting distance. The reflective properties of brush and small targets can get a little tricky for consistent results. My Nikon 550 are pretty good to about 200ish on coyote. My Athlon 1200 is good to about 500ish
Have to agree with Randy my Nikon 1200 is about the same. I have ranged a bigger Fox at 385yds it was on the move in a clean snow covered field. I think the biggest problem with range is keeping on target when it is moving at distance.