Im a new guy here, I just sent off for my new rem 700 XCR an now the hard part, I was looking to get the vortex viper 6x24x50 PST FFP But now I have found the horus site and used there software and its easy. now I also just got shooter ready for mil on mil to learn how to range an learn hold over and all that. But to me the horus is super easy. Guys Im stuck Im at that point were I don't know what to do? I love to shoot an this long range is the way I want to go any help would sure be nice. I want to shoot out as far as I can an call my own shots an just have fun! But I SUCK at math!