Small Bore
Many years ago whilst in Birmingham, I enquired at a respected gunmaker their cost to recolour hardening a gun action.The reaction of the gunmaker was to produce from storage the cracked action of a Boss sidelock[1 of pair] that had been re;case hardened and then submitted for reproof.The gun action cracked at proof!
Nothing to do with the barrel dimensions!I was told by this gunmaker that they would not re;case harden a shotgun action unless the gun was resubmitted to proof after hardening.Further more the owner authorising the work was required to sign a waiver holding them harmless if the gun action should fail at proof.
Based on this example, I have never again considered re;case hardening any of my guns.
