I am finally in a situation where I will have occassional access to a 600yd rifle range. I am looking forward to developing my skills out to that distance, but I have a problem: I don't have a spotting scope and I am sure to need one to spot my impacts. I have no idea what features and level of optical performance would be required to meet my needs. I will be shooting a 6.5x55 and a 6.5-284 at up to 600 yards. I will be shooting at Shoot N C type targets to aid in spotting my hits. The sole purpose of this spotting scope is range use during daylight hours. I do not consider weight, size, or low light capabilities to be important. Sufficient resolution to see my hits out to 600 yds is my main requirement. What features should I be looking for in a spotting scope? What magnification range, objective size, lens coatings, etc. do I need? I am trying to avoid specifying a price range because I expect price to be dictated by the features that I am looking for. As a general guideline, however, I am looking to spend no more than necessary to perform the required task. Any examples of specific spotting scope models that would be suitable minimums for my needs would be helpful and most appreciated.