I watch them true the 16" guns at Bethlehem steel when they reactivated the New Jersey during the Viet Nam conflict.
We had a professor who was a German naval arms expert, recruited by Bethlehem Steel ca. 1916, He showed us the "firing range" where they tested the tubes -they strapped them to a rail flatcar, shot into a cliff, and had a mile of open siding behind the car. They just let the recoil roll the car as far as it would go, and push it back up to the cliff.
We had a professor who was a German naval arms expert, recruited by Bethlehem Steel ca. 1916, He showed us the "firing range" where they tested the tubes -they strapped them to a rail flatcar, shot into a cliff, and had a mile of open siding behind the car. They just let the recoil roll the car as far as it would go, and push it back up to the cliff.
