jas,
The best rangefinder binocs I've seen to date were the Leica Geovid BRF http://www.opticsplanet.net/leica-10x42-geovid-brf-yards.html. But note which side the rangefinder button is on: (the retangle on the left side top). For a R/H bowhunter, this is the hand you would use to hold the bow. For a riflehunter, either hand is easily used to hold the gun.