There are some guys that like to screw around and shoot real far, and all that I have seen do it, (only on the web)say it is just for fun and always assert you could not do it on a deer. Now some Vertical legends have taken shots like that and all think they are the best thing since the bread slicer, but a CB makes way to much noise to do anything past 35 yards IMO. There is a Italian site at the top under CB resources thread and a guy in there does it. But a CB runs out of gas real fast and the hold over to do it is like four or five feet if I remember what one member said about it. So if you set up a scope to do it you would not be able to use it less then fifty yards cause it would be set up for such a massive amount of hold over. CB's do not shoot near as flat as a vertical bow so it is never set up on a hunting rig and just done for fun when it is.