I went out today with my .300 Win. Mag. and a bunch of 210 Berger VLD's loaded up to practice a little bit. The rifle shoots very well and I've had great success with this load. The first shot I took was: 1,080 yards Temp. 76 F Barometric Pressure 24.48 in Hg Humidity 13 percent Angle +3.4 degrees Latitude 39.45, azimuth 57 degrees KAC Bullet flight called for 23.25 MOA and no wind. First shot drilled the milk jug. Next shot was 1,139 yards on one gallon milk jug Temp 84 F Barometric Pressure 24.48 in Hg Humidity 13 percent Angle +4.0 degrees Latitude 39.45, azimuth 30 degrees KAC Bullet flight called for 25.25 MOA and 1.75 MOA for 4 mph full value wind wind. First shot was about 0.75 MOA high, 1/4 MOA right. corrected and fired second round and clipped the right side of the jug and rolled it down the hill. I decided to try one more shot and it was at 1,555 yards on a little bigger than basketball sized rock. Temp 84 F Barometric Pressure 24.48 in Hg Humidity 13 percent Angle +5.6 degrees Latitude 39.45, azimuth 27 degrees KAC Bullet flight called for 43.25 MOA and 2.5 MOA for 4 mph full value wind wind. First shot was called 3.5 MOA low, good for wind. corrected and fired second round and hit the base of the rock. I was wondering if anyone had suggestions on how to true my ballistics calculator a bit better. It is spot on out to about 1,100 yards and then I start having errors. I have chronographed my load extensively and I'm confident in my MV and ES is in the 12-15 fps range. I'm getting atmospherics from a Kestrel 4500, measuring range with both a Bushnell 1500 and Leupold RX-IV rangefinder. I have a Leupold VX-III and have checked the tracking on it and have inputted the correction factor into the program. I am also running a single G7 BC of 0.323. If anybody has any ideas on what to try to help bring the output of this program more in line with the results I'm getting? Thanks in advance for any advice.