So this has been bugging me a bit I shoot with a chrono all the time I live deep in the tropics so temperature change is very minimal. I'm using rl16 139 scenars in my 6.5x47l which shoots great however I have noticed the av velocity changes a lot using the same load. One session over 20 shots ab 2745fps. A month later same load similar number of shots av 2727fps then yesterday did 13 shots for an average of 2704fps. ??? I'm loading with a redding beam scale which I think is very accurate responds to single kernel. Anyone got any ideas why the same load will always fluctuate when my temps are within a few degrees of each other all year round??