I have a number of 03's including a Remmington that was set up for competition with Lyman peep sights and an adjustable trigger. I also have a S stock rig with a star guaged barrel. It has a stamped steel floorplate and the serial is somewhere around 68,000 which puts it squarely in the wall hanger list. Nice looking piece though! Any trades?I'm talking the end of the barrel stamped on the Muzzle. To see it you have to be almost looking down the bore. Any special grade barrel from the time frame of a 1928 barrel would have a Star stamped into the muzzle. The rifle which is a 1919 receiver based on the serial number is not a likely candidate to have been upgraded since they typically did that with NEW production rifles. SO I ask about the Star Stamp.
From what your photos show it appears to be a run of the mill post WWI 1903 that was run through the armory at some point. It has a S type stock which is about correct for a 1919 receiver (but when going through the armory stocks weren't kept with receivers. Basically a rifle was completely torn down the parts judged and then assembled back to spec. This was done by an assembly line type process.
It is how ever possible that when it was assembled a Star gauged barrel was put on it so I ask about the Star that would be stamped on the end of the barrel.