Ross Rifle Identification?

[fritz1255]

Agree , the number on the barrel is not a serial number but one of the cryptic stamps that RRCo used.

Okay, I checked again, the numbers shown in the picture above are the only ones. So if the barrel is cut down, it should be larger at the end than a 28" barrel, right? The barrel diameter on mine is 0.620" at the back end of the front sight, 0.562" at the front (muzzle end) of the front sight. Can anybody measure their barrel diameter on a 28" barrel to compare? Thanks in advance!

Another detail that I think might also point to a sporterized military model - I finally took the action completely out of the stock, and on the bottom of the barrel directly opposite of the rear sight are two holes that I think went to the original front sight. I assume this means that the barrel was rotated 180 degrees and rechambered?

One final detail - it has a crown over "I" over "Q" on the top of the barrel. Is there any significance to that?