I talked to Colt a few months ago concerning another matter and asked about the Python and Anaconda. They said at the time they were being built by the Colt Custom Shop.
Having toured both S&W and Colt, I'm not sure how what you're saying is possible. I chatted for a while with the person building Pythons (fitting) and was able to watch them making some parts- all with old (but well loved) machines that seemed pretty huge. I can't imagine them being moved.
As for Smith, they build their autos on CNC, their revolvers the old way (like Colt). The factory is pretty split- one section CNC for autos, one old style machines for revolvers. Unless they set up the CNC machines for Colt's revolvers...but this doesn't seem possible due to union issues (at Colt).
Are you sure?
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NRA, USPSA, IDPA and MCRGO member
http://www.ehhs.cmich.edu/~bchamber/10mm.html