Cabelas states the CLR will range deer sized game to 400 yards. According to Nikons ads the New prostaff 550 will range deer sized objects to the as stated 550yards. I can't say as I have yet to use the new Prostaff 550 maybe somebody else can chime in this regard for you. However if I had to chose between either bushnell or nikon, I'd pick the nikon based on previous experience with their LRF's.