I have the Bianchi 111 Cyclone for my 5.5" Redhawk that came with the package when I bought it. It's a great holster for belt carry but the Simply Rugged Sourdough used in a chest carry position is the best I have found. You can carry a loaded backpack, rifle, or whatever and still have the revolver at the ready.
Rob makes a simple but high quality product that really works.
Dan