As long as the shorter barreled revolver is properly set up to shoot POA from the factory, the fixed sights will do as well as any . . . and better than an adjustable sight one that you monkeyed with and forgot your didn't dial it back down!
Once you know where your fixed sight revolver shoots at various yardage distances, you can simply use good 'ol "Kentucky windage" to compensate for the bullet's rainbow path.
Heck, I even do Kentucky windage with my S&W Model 29 that's topped with a Holosight. I never adjust the red dot . . . it remains dead on at 75 yards . . . allowing me to adjust for other distances SLIGHTLY and easily hit a deer's kill zone every time within humane distances.
HOWEVER . . . I use Kentucky windage with that sight at TWO-HUNDRED YARDS . . .
At that range, a 34" high hold will drop that 'ol 300 grain flat nose bullet right into a milk jug and send if flying! NOT SO if I've monkeyed with the sight adjustments and I'm not sure anymore.
T.