Hard cast, FMJ or an XTP loading from Underwood is not to be underestimate. 180gn at 1080 to 1100 fps is 464 & 484 ft-lbs respectively. Ive gotten 972 fps with a Buffalo Bore 200gn hard cast from a 23.Everything I’ve read says the ballistics are very close. Closer than 9mm and .40. Maybe someday I’ll get a .357 or .44 Mag but for now these are my most powerful handguns.