Heck, I would settle for just being able to get ANYTHING Colt. The SD chrome lined barrels seem to be a pretty consistant barrel (1-1.25) as well, but can't get those either. :(
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Frank @ CLE used to do short barrels so I assume that they still would. You can e-mail them at compasslake@earthlink.net and ask. But like Noveske, you have to ask nicely and be willing to wait a while.
And FWIW, the most accurate barrel that I have ever shot or owned was a Lilja that was done by CLE.
A SS Oly is the most accurate barrel I've ever used.