petejc,
All of the guidelines (distance, scoring, etc.) are spelled out in the first post above.. After shooting a target(s) that you wish to submit, make a picture or scan that enables scoring and post it (or them) right here in this thread. If you have any questions, we'll try to get them sorted out for you. Looking forward to seeing you post the results. Have fun and be safe - that's what is't all about!
J.B.