Here is another example that I have of that action. Also a single shot and left handed. It also has the 4.522 action screw spacing. This was a rifle I purchased several years ago. It was built as a Back-up Palma rifle competitor. The serial # is very close to yours as well with no letter prefix. This Rifle has a Criterion barrel with Palma contour and muzzle turned down for front sight. It is chambered in .260 Match chamber or so it was reported to me. The action is glass smooth and shoots 1/2MOA consistently. Another "fly in the ointment" I thought I would share.

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