The maximum ranges listed for a rangefinder
are for large, reflective targets
. One of the best current rangefinders
with the most power is the Swarovski Laser Guide 8x30.
will range a coyote at maximum distance, though. You can expect around half that distance on a deer, and less on a smaller animal or object like a coyote. Most ofter you'll have to bounce the laser off a larger, more reflective object near the coyote. Here's a primer that may help: How to Buy a Laser Rangefinder.