Built with the bowhunter in mind, the new RX®-FullDraw 4 gives you the advantage you need to tag out with your bow. And with 1/2-yard, angle-compensated accuracy, there's no second-guessing your distances. The RX®-FullDraw 4 rangefinder features our unique Archer's Advantage software, which uses your arrow weight, arrow velocity, and peep height to calculate extremely accurate ballistic solutions out to 175 yards. The RX-FullDraw 4 is Leupold’s first ever Flightpath™ ranging device that takes the guesswork out of achieving the perfect shot, every time. This extremely fast rangefinder ranges out to 1,200 yards, so even if you're too far to take the shot, you'll know how much distance you need to close in order to seal the deal.