Season 7 Episodes20
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7.1
Underground World, Gunmakers
7.1/10 · 13 votesJun 4, 201022 min
Ranked #11 of 20 in Season 7•−0.1 vs season avg
Head underground into America's largest mine to find out how lead is extracted. And how do they manufacture and test made-to-measure shotguns?
Seasons17
Episode Summary
"Underground World, Gunmakers" is episode 1 of How Do They Do It? season 7. It scored 7.1/10 from 13 votes, ranking #11 of 20 episodes this season (season average 7.2). It aired on June 4, 2010.