Ken, Triplett Steel barrels was the only barrels offered for the 00 grade. I believe that 0 grade was the lowest.
Tom Archer wrote a few good articles in the Double Gun Journal not to long ago about Syracuse Arms.
I have one also but in 12 ga.
Before ebay banned selling parts of guns I was able to get a pair of 32" barrels in Improved Damascus very cheap. Fits my action but there is a broken piece where the action locks up. Trying to figure out what to do about it.

David

David