Check with JES first, the barrel diameter may be too small for him to want to rebore. Everyone sets their own rules when it comes to what they will and won't do. If they won't rebore, there's a guy that sells new, in the white, Zastava barrels and the 9,3x62 just happens to be one he sells. I recently installed one of those Zastava barrels and yes, it is a lightweight barrel.
Whatever works best for you in the end is the right decision.
