Mars Mission Shields Up for Tests

NASA’s Remote Hypervelocity Test Laboratory is equipped with four 2-stage light gas guns; two 0.17-caliber (0.177-inch bore diameter), a 0.50-caliber (0.50" bore diameter), and a 1-Inch (1.00" bore diameter) gun at the facility. The 1-Inch range is 160 feet long, from gunpowder breech to the end of the target chamber outside.