In this picture
[Linked Image]
The barrel looks to be almost unblued, or perhaps very thinly blued at most. Is that an artifact of the photo or is it really like that? All Shiloh barrels that I have seen are very deeply blued and do not look like that.

The rest of the rifle looks almost new from what I can tell. That would make wear an unlikely candidate for causing a thin blue and wear would look much different anyway.
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It is a nice rifle and I would not consider a rebarreling to be a bad thing - indeed, for some early Shiloh's it's a near requirement.

Save an elk, shoot a cow.