Dirty Bird Targets reveal a white splatter that appears upon bullet impact, which allows you to easily spot each shot. The non-adhesive back also allows you to affix to a surface as you wish, add notes, and then easily save the targets for future reference. This target designed with 3-Gun Nation features two scoring areas a 17.25 inch secondary, or B zone, and an 8" primary, or A zone. One hit in the A zone is considered a neutralized target, or two hits anywhere in the B zone.