My efforts in experimental ballistics have been going well. I had a set of .30-30 loads I wanted to chronograph and check the accuracy of. So I set up my chronograph and posted some targets. I would normally take the targets down and then make measurements. Today I decided to take photos and then measure them later. It worked well. I cropped square at the same level, which was easy. Just fit the bull into the frame. Then I could measure in comfort with all the targets printed on the same sheet of paper. I will do this for the next iteration.