I cannot attest to this fact but I have heard several times from forum members I respect that the optics on the Leica are better but the accuracy on the Bushnell and Nikon models is better. Again, I cannot say this personally but have heard it otn a few occasions.

I have a Busnell Sport model rangefinder. For the bowhunting situations I am presented with it is fine and entirely adequate. However, if I had more money to spend I would buy the new Nikon Monarch rangefinder. Better optics with just as compact a package.