Hello all, I am looking for some spotting scope recommendations. I would like this scope to be capable of clearly identifying the number of points on a deer/elk at 600 yards (about as far as I would shoot at an animal). Also, I would like to be able to see impacts on targets out to about 1,000 yards if possible. My budget is fairly tight, $400 or so being about my top end. I had looked at the Vortex Diamondback 20-60x60 online -- what are your thoughts? Please give me your recommendations! Scope power/Obj. Diameter recommendations, brands, specific models, etc.! Thank you all in advance!