I often carry a Colt's SAA .357 with a 5 1/2" barrel. I also have a SAA in .45 Colt with a 4 3/4 inch barrel, but I am much more accurate with the longer barrel.
Barrel length is seldom a factor in concealed carry.
If you choose a Colt's, remember to only load 5 rounds. Load the first chamber, skip the next, load four more, and then cock the gun. Then lower the hammer on the empty chamber.
Under duress, my first shot with a Colt's single action is more accurate than my first shot with any other handgun.
I have fired thousands of rounds of .22LR, .22WMR, .38, .357, .44 Special, and .45 Colt through a dozen or so of these guns, and have never once had a misfire or a jam.
I can't say that about any autoloading pistol I own.
I carry the gun in a Bianchi #1L belt hoster, and I tuck the holster into my strong side hip pocket. Don't misunderstand: the holster is on a belt (a Bianchi # B4, if it matters). But I use the hip pocket to conceal the bottom half of the holster.
This rig makes a definite bulge in my shirt or jacket, or whatever I am wearing at the time.
I have thought abought calling Milt Sparks and seeing if T.K. would consider building an IWB holster for the Colt's SAA.
I have many holsters and belts, but the two best that I own were built by Milt Sparks.
What about it, T.K.?