I can tell you in my own case, my first Taurus revolver is a M85 .38 I bought in 1996 to carry concealed. It puts 5 shots into 3"at 25 yards which is decent and quite deadly. I've shot it so long, I have ultimate confidence in it. My second Taurus revolver was a used 4" nickel 66 in nearly as new condition, picked up at a gun show for 200 bucks. It puts 5 into a 25 yard target with 1" accuracy. THAT, my friends, is excellent with iron sights. That's as good as my 6.5" Blackhawk at that range, though the added sight radius of the Blackhawk makes it better at longer ranges. My third is a 3" 66 and it shoots 1.5" at 25 yards and I consider that fine accuracy for a self defense revolver. My 4th is a 605 poly which puts 5 shots into 3", similar to my 85, and was spot on out of the box. The only gripe I had with 'em was the 85 shot to the left out of the box. I eventually had a gunsmith dovetail a front sight into it which I can adjust windage and it's spot on, now, and the black sight is much easier to see in sunlight than the stainless one which is good.
So, these are the specifics on accuracy of Taurus revolvers in MY experience. They'll outshoot revolvers I've owned like a 4" M19 S&W, a 4" M10 S&W, and a Ruger Security Six. Heck, with .38s, my 2" Taurus guns outshoot that Security Six. It shot well with .357, but it was pathetic with .38s which is mostly what I shoot in my .357s for range work.