Whatever holster you choose, I'd strongly suggest choosing an IWB that does NOT have the straps/clips/whatever over or near to the revolver cylinder. I had a long chat with Tony Kanaley at Milt Sparks Holsters about this, some time ago, when I was looking for an IWB holster for my .357 Magnum revolvers. He recommended their VersaMax II design, which puts the loops/clips out at the end of the holster, thus minimizing bulk over the (already bulky) cylinder. Makes sense to me...