The more I read, the more I'm confused. What would be the advantages of the mil dot system of the IOR over the Burris Ballistic plex, Leupold Boone and Crockett,Swaro Tds or any other? I THINK all day, when I hunt, I'd like to know where to aim without doing a bunch of math in my head. I turn off my human brain and hunt with my "lizard brain" so to speak. My longest ranged shot(range finder) was 324yds. Some WERE longer, but not ranged. My 3 biggest deer were all under 100yds. So I think 600 yds would be about all I'd need. Thanks for your help.