I'm thinking about setting up another long range rig in .300 Win. Mag. I was wondering if there is anyone out there with ballistics software, that could possibly run something for me I've been a bit curious about. Using Sierra data, I can run a 190 grain Sierra Matchking out the muzzle at 3,000 FPS with 73.5 grains of Reloader 22 powder with a 24" barrel. Slightly better with a 26" tube. With a 100 yard zero for reference, this bullet at this velocity is showing a drop of -269.21 inches at 1,000 yards. Now the question: If I were to run a Leupold Mark IV 16X on a 45 MOA base, this would give me a total upward elevation adjustment of 115 MOA with a 100 yard zero. The Leupold Mark IV 16X has a total of 140 minutes of elevation, (70 either side of center), plus the 45 MOA included in the base, for 115 minutes total. I was wondering what would be the maximum range I would be capable of holding "dead on" out to with this set up and load? Thanks in advance to anyone who can help.