Jim,

As for the idea, I guess the Lord gave it to me! I did see an idea for a shooting board that was adjustable between 90 and 45 degrees, but it didn’t include a scale. For the protractor, I just typed in protractor images in the search engine and selected this. I had to split the image to make the scale accurate because of where the pivot point is.

L/W

“Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” Benjamin Franklin