Thats cool. What paper have you printed the targets out on? What are those clips you've used to hold the box to the tripod?
Can you take some measurements, materials please? Looks idea as it can be packed away.
I've been measuring the card NSRA targets and they seem about 300gsm.
I'm thinking of getting some 300gsm card stock and getting a load printed up. Would anyone be interested in a bulk buy?