A lot of the refurbed rifles can look practically new.
Both of those I bought had new-looking barrels with very good bores- one could pass for new.
I don't know exactly what was done during the refurb process before all these were packed away in cosmo again. Both of mine were all matching numbers, down to the bayonets. Perfect blueing.
It's hard to believe that, given the nature of the corrosive-primed ammo they used, that the ones I got weren't sporting new barrels. I would expect at least some pitting and corrosion from neglect (you know the soldiers weren't washing out the bores every night) and I don't see any.
I cut the barrel on one of them, pillar and epoxy bedded the receiver into a Boyds stock, added a Timney trigger and long-range optic...it's one of my long range (600 yard) rifles (handloads, natch).