I was selling a 624 and was asked if it would chamber 44 magnum cartridges. I thought the question odd..but told them I would check. Sure enough..it does! It does not appear the cylinder was modified but I did not buy the revolver new. As far as liability goes..should I still sell it knowing a 44 magnum could be chambered and fired? The cylinder measures 1.580" long vs 1.72" long on a 629-4 I own, so I don't think the cylinders were swapped.