AMT overcame this issue by drilling 18 holes at 90 degrees to the chamber. A sleeve was then welded over the chamber; providing a tiny amount of clearance for the excess gas to escape from the first set of holes on back to the second set, thereby relieving the pressure enough to prevent the case from sticking.
To overcome this challenge, AMT employed a solution involving drilling 18 holes at a perpendicular angle to the chamber. A sleeve was subsequently attached to the chamber via welding; providing a minimal clearance for any excess gas to escape through the initial set of holes and into the second set, thereby alleviating pressure and preventing the case from sticking.