Thanks to all for your input, but this would be a homemade project. Piece would be bored to i.d. size then turned between centers for o.d. to keep it concentric. Then it would be heated and shrunk to a mandrel with the bore side sticking out to taper the last 1/2" to .002+ final taper at end.
Bill said Oscar soldered them, I was looking to see how some of the Lock-Tite products for screws worked to hold it in.


Mike, I just might do the reloading if this doesn't work, but I like to tinker.


David