Rossi/Puma 92's rate of twist for 24-inch 45 Colt barrels?

[Naphtali]

What is rate of twist of Rossi/Puma 92's for 24-inch 45 Colt barrels?
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Regarding obtaining such a barrel, will Rossi-USA sell a barrel to a well-known custom gunmaker (having FFL) for installation? If not, will Rossi-USA rebarrel?

I have been unable to identify an email address or a CONTACT web page for Rossi. Anyone who has this, please furnish it.

[Lonegun1894]

All Rossi 1892 rifles, regardless of caliber, use a 1:30" twist. I can't answer the other question, but would love to know too.