Burris makes a scope for rifles (e.g. model 200112) that includes a laser-rangefinder and bullet-drop compensation programming that moves an aim-point to the proper hold-over based on the target range. gun)Nice! After a very frustrating game of playing range the deer, set the speed-dial, and range the deer, set the speed-dial, last night, I was thinking how nice would it be to have a scope that automatically indicated or selected the hold-over based on the range! Sadly, the Burris scope only works for rifle cartridges. It will not work with a crossbow arrow... they are too slow (I called tech support and asked). Is there anyone out there that DOES make such a scope that's compatible with crossbows?