How to Measure Groups using MOA

What is the best way to measure groups from your rifle? The answer is MOA (Minute of Angle). This video explains how to calculate group size in MOA and provides a link to
a free Simple MOA calculator spreadsheet.

Links:
Other MOA video https://youtu.be/F-j968cgbJI

Simple MOA Calculator (Excel spreadsheet) https://www.dropbox.com/s/67h8kv8p0zxvrc9/Simple_MOA_Calculator.xlsx?dl=0
(you can download the file and do not need to sign in or sign up for dropbox)