Swarovski is the best of the best in optics imo and I have them on most of my hunting rifles but they haven’t really targeted the competition shooting community. The X5 series would be the best long range competition scope they have but I don’t know if anyone is using them for competition. The BT system just doesn’t have the elevation travel or any windage dialing at all. For hunting at ranges of less than 600-800 yards the BT on a Z3 , Z5 , or Z6 is hard to beat. Their binoculars and spotting scopes are world beaters.