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