The most accurate revolver I have ever fired was a buddy's Clement's custom S&W Model 28 converted to .44 Special. My buddy is a gunsmith and had a safe queen that Clement's wanted, so he acquired this custom revolver through trade, otherwise my buddy said he would never be able to afford such a gun.
I assume we are talking about accuracy downrange, say at least 50 yards or so. I also shoot at multiple close targets fast. I shoot Colt SAA's and even though 5 of my Colt's are 4 3/4" bbl's I can hit better with this one Colt than I can the other 4. Oddly enough I can hit better with this one short barrel Colt than I can two others that have 7 1/2" bbls. I believe it is because of the nice trigger. I mention this because of the 4" Python comments. I can't believe a 4" Python could compete with a FA 83 on a IHMSA course, but a 4" Python in the right hands would be just the medicine in a dynamic need to hit situation.
I quit bench resting pistols, find no value in it. It's all two hand hold, Keith sitting position or Creedmore now. That's how pistols are used.
Recently I was shooting my .357 Colt SAA 7 1/2" at 12 inch steel plates at 50 yards and could not miss. I was thinking I was real good, then the sun dropped below the tree line and couldn't hit a thing.