Originally Posted by
Mr Wolverine
Do not set the gas setting to maximum to start with, that is very bad advice. Set the gas setting to the smallest that the rifle will operate on. On the maximum setting you are simple "hammering" the rifle unnecessarly. This would be like taking a new vehicle and running the rev counter into the red all the time. When running in a new rifle (any new rifle) treat her gently, nurse her, keep her clean and well lubed. When she is run in and all the working parts are honed to a fine finish, then and not until then, you can up the anti if you have to. Keep the larger gas settings for use under adverse conditions, or when you want to have an excess of power to insure reliable operation, like a competition.
Make sure your barrel retaining bolt stays tight. Do not use red Locktite on it. Torque should be 250 inch pounds, that is very tight for the small bolt. Not 250 ft lbs that is lots for a cylinder head on a diesel engine.