FWIW, ages ago when the fluted cylinder blackhawk size grip frame 44 mags (standard Blackhawk style format but marked "Super Blackhawk") came out I grabbed one. The only barrel length in the fluted cyl was 5 1/2", which I didnt really care for but wasnt a big deal in and of itself, however, once I started thinking about holsters, and that I already had a number of good 4 5/8" size holsters on hand, I had the barrel chopped to 4 5/8" and never looked back. That was far simpler than trying to replicate good holsters I already had and liked to fit a slightly longer barrel of ONE gun. The likelihood at that point was it probably wouldnt get carried much, so....