Navy: Railgun Tests to “Blow the Top Off a Mountain” the U.S. Navy had announced last year that it would take a prototype railgun to sea Kris Osborn · October 11, 2018 Please leave this field emptyStay Updated with Warrior Maven Subscribe for daily military news and updates delivered straight to your inbox. We don’t spam! Read our privacy policy for more info. Check your inbox or spam folder to confirm your subscription.