Shooters exposed to lead at work over long periods of time, like military personnel in firing ranges, risk a range of medical complaints. April 5, 2017 People who shoot risk unhealthy levels of lead exposure Mark A.S. Laidlaw, RMIT University; Andrew Ball, RMIT University; Brian Gulson, Macquarie University; Gabriel Filippelli, Indiana University Indianapolis, and Howard Walter Mielke, Tulane University Millions of people who shoot, for work or leisure, risk lead poisoning, according to new research.