With respect to accuracy, I have been very pleased with my 5.5" Clark Custom STC barrel. Finding the right sight for it (for steel) has been an interesting challenge, however. A Burris FastFire III is real nice (especially for the money), but the lens is a little small and it is sometimes hard to find the dot on the draw. I currently use a C-More RTS, which is great EXCEPT that the auto-dimming circuit is horrible - the dot is WAY too bright in anything but daylight. The sight is unusable on an indoor range unless you put some tape over the photocell.