Interesting version of a Leupold scope. I guess it's a 30 mm tube based on the Long Range description, but I never saw that specifically stated. I like the etched cross hair design better than any of the factory Leupold crosshairs I've seen so far. I'm not a big fan on the BDC turret that's intended to be calibrated to a specific load/caliber, but that feature may appeal to those who have watched the Best of the West videos.