{HEAD ~ A method} of producing a superalloy gun barrel includes providing {TAIL ~ a tubular workpiece} made of a cobalt based superalloy material, the workpiece having at least about 30% by weight of fcc phase and having an inner diameter and an outer diameter 
{ HEAD ~ A method } of producing a superalloy gun barrel includes providing { TAIL ~ a tubular workpiece } made of a cobalt based superalloy material , the workpiece having at least about 30 % by weight of fcc phase and having an inner diameter and an outer diameter
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