I have been asked by several people where I got the spreadsheet for my load development so I figured I would just post it for everyone. It was developed by the 65 guys. It works great and makes it simple to analyze your data. You can also copy and paste your chronograph data if your chrono logs on to a SD card.
http://www.65guys.com/wp-content/uploads/2018/06/Load-Analysis-Model-V2.xlsm
Make sure you click reset chart when you are done filling it out and it will populate the graphs
http://www.65guys.com/wp-content/uploads/2018/06/Load-Analysis-Model-V2.xlsm
Make sure you click reset chart when you are done filling it out and it will populate the graphs