Here's a little snippet...
The Precision Rifle Series (PRS) is a championship style point series race based on the best precision rifle matches nationwide. Scores are tracked throughout the year to rank shooters from across the country. Most matches are based on practical, tactical, or sniper competition formats with targets up to 1200 yards out. PRS matches are recognized as the major league of rifle matches, offering the most challenging and competitive events with each match drawing shooters from all over the nation.
At the end of each season, there is a PRS Finale match where the best of the best compete head to head. Shooters ranked in the top 50 nationwide are invited to a match at the K&M Precision Rifle Training Facility in Florida for one last bang. The info below is based on the equipment those pros brought with them to the 2013 finale. This is a great set of data, because 50 shooters is a significant sample size and this particular group are also considered experts among experts.
Read the full thing obviously, but a good read for anyone shopping for a new rifle scope.
Article here: http://precisionrifleblog.com/