Steve and I corresponded quite a bit on the rifle. We concluded that the rifle was a star-gauged and targeted rifle issued to the USMC shooting team in 1909 (but too late for the 1909 National Matches), who fitted it with a Winchester A5 telescope for match competition in that classification. Prior to 1910, National Match rifles were nothing more than selected, star-gauged, and targeted service rifles.
J.B.
Correction. Steve's rifle was manufactured and potentially issued in time for the 1909 National Matches held at Camp Perry, Ohio, beginning in late August.