Make those long shots confidently with the Nikon ProStaff 3i 6x21 Laser Rangefinder. This hunting accessory has been designed to measure the distance of targets up to 650 yards away and is outfitted with multiple systems to increase your accuracy: Spot On Ballistic Match, Tru-Target Ranging, and the ID (Incline/Decline) system. The technology starts with Spot On Ballistic Match which is calibrated to work with Nikon's BDC reticles. Next, Tru-Target Ranging technology enables users to choose between two different ranging modes depending on the situation. First target priority mode allows you to range an object as small as a fence post while distant target priority mode displays the range of the farthest target among a group of targets measured. Finally, the ID system uses a built-in inclinometer to measure the angle to the target, then takes the range to the target and provides an adjusted distance for users to accurate gauge the shot.