The short answer is yes. For safety, because binoculars enable you to see distant objects without pointing your gun at them and using your riflescope as a telescope is never a good idea. For ethics, to make sure of your target before shooting at it. For efficiency, because binoculars shrink distance and allow you to assess far objects without walking all the way to them. And for success, because binoculars help you see distant animals in the first and last hours of the day, when they’re most likely to be moving.