I am still a novice shooter...so maybe only medium roasting. I have developed a load of 73.5g H4831, 180g accubond, RWS Brass, BR2 Primer (300WM) I had two chronos with me. A Beta master that recorded(average of 10 shots) 3145fps The second was my new CED M2 that measured(same 10 shots) 3059fps. I plugged the 3059fps into my ballistic fte(iphone) and shot these four shots at 500 yards.(see pic below)i only shot these 4 because i was running out of time. As you can see I'm at least 2 3/4 inches high and as much as 4 3/4. My problem is im having a hard time wrapping my head around Mil-Rads. I have a NXS with mil/mil. If I plug the 3145 into the FTE program it calls for 18 clicks instead of 20. Would this put me where I need to be? Does this mean the Beta Chrony was closer to the actuall FPS? I wish I would have never heard that .1 mil = roughly .33 inches at 100 yards.