Birchwood Dirty Bird 12 Inch Sight In Target makes a splatter of white appear upon bullet impact so you can immediately spot each shot. It’s simple to use both indoors & outdoors. Black & White contrast is perfect for reading shot groups. Non-adhesive back affixes to surface, add notes & then easily save targets. Sight-in up to 400 yards away. The Birchwood Dirty Bird 12 Inch Sight In Target is 5 bull's-eye targets in 1 for checking different ballistic loads and for more shooting fun. Complete with 1 inch grid pattern & staDiamond lines for more precision. Aiming Point on each bull's-eye for open or scoped sights.