Inland carbines were finished as a unit after assembly of the receiver, barrel,sight and band. A Winchester on the other hand was assembled after the parts were finished, so you expect to see different finishes on some Winchesters as well as marks where the front sight was placed. The inland was sand blasted and assembled before being finished, thus the "shadow" on the barrel and lack of finish differences. You will see a different finish on the bolts of all of the carbines.