We I decided to buy both of them. Went and shot my 6.5x47 yesterday at 600 yards. I factored in my velocity, bullet, sight conditions, weather conditions, angle, etc.. Ballistics called for 11.8 MOA and BulletFlight said 12.2. I dialed 12 MOA and was dead on with elevation.
We backed up to 1200 at dusk to try the 300 win mag. Target was real hard to see. It had just rained and was 88 degrees with 90% humidity with zero wind. I took three shots at 1200 and dialed 34 MOA. I missed the whole 4x6 board.... I need more practice and will try it again later. It was dark by the time we reached the target
. I have to try the coriolis and spin drift calculation next time. Also hope to start at 700 or 800 and work my way back to 1200.