It looks like Ruger has added a couple of new chamberings in the Super RedHawk line.
They have a 7.5" Barrel 41 Magnum which I believe is a House of Guns Exclusive.
They also have a new 6.5" Barrel 10mm version. Cut for Moon Clips and comes with 3.
The 10mm would be a great candidate for a 10mm MAGNUM rebore.
Now if they would get a 357 Magnum, or better yet 360 Dan Wesson or even better yet 357 Maximum Super RedHawk out. Put a warning in the box to shoot 158 grain or heavier bullets ONLY in it.
See You At The Range