The ballistic plex used by Burris, and other crosshairs such as Mil-Dot, or TDS are not designed to measure distance, and are of no use if you do not know the range at which you are shooting. All they are designed to do is give you a point at which to hold for a given range. The Ballistic plex, ussually is, or can be calibrated for a specific load and caliber. The TDS will give you a range holding point, as well as a reference on where to hold in a cross wind, and the Mil-Dot is simply a crosshair with a series of dots running along the vertical and horizontal cross wires.

These scopes are designed to use hand-in-hand with a laser rangfinder. I think this is starting to clutter up the sport of hunting. These tools are fabulous for targets and varmints, but people are using this on their big game rifles. Now they belive they will be able to kill that elk 50 miles out there, and get there before he makes it to the vet and a full recovery. If you wan't this on a hunting rifle, and your shots won't excede 300-350 yards or so, smply sight in at a 200-250 yard zero. Depending on the cartridge your shooting, this should give you a reasonably long point blank shot, and eliminate the need to reley upon more and more stuff to cluter up your daypack.. Besides, if you miss, do you really want to say you had all this on you? I prefer my normal excuse, "I miss judged the range" this way I can blame it on my stuipidity!