I fixed mine by drilling out the mag plug a size bigger and rethreaded it and made the screw with a square shoulder on the end to seat in the hole in the bottom of the barrel also made the hole a little deeper with a square bottom to match the end of the screw when just barely making contact in the bottom of the hole. It has been holding up fine under a steady diet of SAA270 gr and 300 gr boolits at a right smart pace.
Steve.........
