My experience with the big bore Rugers, 44's and 45's, is that it's more of a boom when you touch it off. A 357 mag hurts my ears worse that the other two ever have. A definate difference in the pitch. Years ago I shot a 357 mag off the hood of my truck with no hearing protection, the sound that reflected off the windshield was awful. My ears rang for days. Unless I'm in the woods taking a shot at a critter, I wear hearing protection with all of them now. All that said, be it a 45 or a 357 Blackhawk, hard to go wrong with a 4 5/8 inch barrel in either. The 45's though, even with a factory type loading, 250 gr lead running around 875 fps, packs a good punch. JMHO