Roeder
Silver $$ Contributor
Might be a Savage factory barrel. Numrich Arms bought the barrels in process when Savage went belly up some years ago (90-91?). Savage didn't stamp the main info on the barrels until they were headspaced on actions. I bought several of these from Numrich and the only markings on them were a letter inside a circle, just in front of the threading -- like yours. All I used were good shooters. Still have the .223 barrel and it's had lots of rounds thru it and still a good shooter. Some of the barrels were crowned and some were not. Savage factory barrel threads tend to be somewhat flat, particularly older ones. Remember they have to be interchangeable with all actions of that thread size.
I think we have a winner! There is no law that requires any markings of any kind on a barrel that is not installed on an action. The person installing the barrel is responsible for markings. Granted, there are many barrels being sold for user installation that are marked, and the markings usually end up out of position to the receiver markings , even upside down or under the stock line.
It makes sense to mark the barrel in the right position after headspacing.
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