In response to the OP's original question It is my belief that no detrimental change will occur on the damascus monobloc side of the weld BUT I can assure you you will have problems in the HAZ (Heat affected zone) immediately at the root of the weld pool on the tube side
unless treated.Typical modern sleeving tubes are SAE4140/UM8 material Chrome Molybdenum alloys which will crack/fracture unless heat relieved above there upper critical limit and lowered through lower critical limit slowly and evenly.
Regarding the failed Parker it looks to me as if someone followed the std monobloc cut point of 3&1/4" . This works great for 2&1/2" Chambers but it should more accurately be expressed as 3/4" ahead of the chamber/forcing cone intersection point. Thus for a 3" chamber a cut and finished length of 3&3/4" should be used.
I would hope John Foster or Gunman would review and comment.
Last edited by Hugh Lomas; 05/12/16 03:18 PM.
