With the barrel loosened, the position with it hand tightened, looking from the muzzle end should place the front sight at between 10:30 and 11 O'clock, or about 45 degrees. Torquing from there to top dead center is correct.
If the barrel at hand tight is closer to 9 O'clock, you need to remove a bit material from the barrel's shoulder. Better not to take it from the frame, or a replacement barrel might not snug up properly. If it is less than 11 O'clock, you need a shim washer (difficult with an octagonal barrel) or locktite to freeze it in place at top dead center. The other cure is to turn the shoulder back for another (almost) full turn on the barrel, and a slight shortening of the loading lever as well as resetting the cylinder gap.
I have a Navy Arms Pietta 58 that rotated the barrel the first time I shot it, presumably the bullet hit the rifling unscrewed it, and I found there was almost only hand torque on the barrel at 12 O'clock, so I locktited it (blue, don't use red) and it has been happy for several years so far, even with the heavier, harder bullets of smokeless cartridge loads in a conversion cylinder.
Smith & Wesson DA revolvers have a reverse CCW thread on their barrels to prevent the force of the barrel twist from unscrewing the barrels. Previous S&W revolvers with the clockwise threads had a cross pin to prevent rotation.