Use this link to plug in your measurements and get the score of your birds!
http://oldgobbler.com/checkstation.htm
Print out these sheets and keep a few in your truck if you so desire! I've gotten by with paper plates, napkins, or the back of a business card. Make due with what you have for the required picture of score sheet and bird together, but Lee made these up for us a couple years ago and I want to link them again for folks to use if they would like to.
https://i.imgur.com/qzvNivo.jpg