I'm considering buying a 646 revolver in .40 S&W and I believe that it comes in the L-frame with a titanium cylinder. I know nothing about this material, all my Smiths are either blued steel or stainless.

What are the pros/cons of titanium for a cylinder? I'm thinking primarily from a cleaning/maintenance perpspective. Is it coated like the aluminum cylinder/frame of the 317? How does it hold up? If it wears off, is the underlying metal subject to corrosion?

Thanks,
Lou

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