One consideration using JESS, no needed alteration to the stock and in my case, my Pre-64 FWT .358 still looks original (started out as a shot out .243). He didn’t change the barrel stamp, put new info on the bottom of the barrel.
For a vintage rifle like that, rebore is a good option. Try pricing an original Pre-64 .358 FWT. And mine will shoot with an original, maybe better than some. Other than the barrel stamp, one would never know the difference.
DF
