Texas bull’s eye
n.— «The cluster itself may have been what is called a Texas Bull’s eye, where one shoots a number of rounds at the side of a barn and then draws a target over the tightest grouping, if there is one.» —“Maddening Media Misinformation on Biotech (Part 2 of 5)” by Thomas R. DeGregori American Council on Science and Health Aug. 14, 2007. (source: Double-Tongued Dictionary)