So i finally took chrono to the range to see what my loads would do. Finally just used old spotting scope tripod to mount chrono on. It works great! Now my question to you more experienced loaders. How do i interpret the chrono info? SD,ES,Avg? My best groups had the lowest numbers. I worked up a new load with new powder. Tried some old loads just to see what i was getting also. Old loads were just a bit faster. gun)