Yes
Keeping the adaptor clean does seem to be key also, A quick wipe over before fitting takes seconds but may save you the cost of a new cylinder, Not sure if the Hammerli comes with a steel or brass adaptor, it would worth getting a brass one if you can, best fittings may do them, Why Walther did this makes no sense, Aluminium and steel was never going to be a good mix, every other manufacture provides brass bottle adaptors.