Nikon 8449 User Guide - Page 6

Using the Nikon BDC Reticle You have no doubt noticed the series of round circles in the lower vertical section of the BDC reticle. These circles are positioned to enable accurate placement of shots out to four hundred to six hundred yards, depending on the caliber of your rifle. The NIKON BDC reticle system is user-adjustable. The shooter can actually tailor the performance of the reticle to his particular rifle and load. Nikon suggests the use of a laser rangefinder to ensure accurate distance determination for longer shots. Nikon offers a complete line of rangefinders that are optimized for hunting. We must know the distance to our target for correct hold-offs. There are two challenges for accurate placement of shots - drop and drift. Wind drift is the most difficult since wind speed and direction are infinite variables. At five hundred yards a ten mile per hour cross-wind can drift a