Davis Gun (IMAGE) DOE/Sandia National Laboratories Caption Tyler Keil, lead engineer for a test series using Sandia National Laboratories' Davis gun, performs a final diagnostics check on a data recorder for an impact test on the nose assembly of a mock B61-12. Data gathered from the test is helping analysts calibrate computer models. Credit Sandia National Laboratories/Randy Montoya Usage Restrictions credit to Sandia National Laboratories License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.