The Burris XTR II 8-40x is the largest magnification scope in the entire Burris lineup. While it was intended primarily for bench rest and fixed-position extreme long range targets, it's also become very popular for people shooting prairie dogs and other varmints from the next county over.The XTR II 8-40x50mm uses the XT-80 click adjustment knob, which provides 80 clicks per rotation. The F-Class reticle is MOA.Model #201081 is a Rear Focal Plane scope with the new F-Class DCH reticle. It is non-illuminated. It's designed to provide the extreme precision required for benchrest competitors.The riflescope outdelivers its modest price tag. And it's protected forever by the Burris Forever Warranty.