I've been shooting J-frames as primary for over fifty years and like them; have no desire to change. Conversion cost and cost of ammunition isn't a factor. I shoot 147gr jhp xtp for average 952fps and 292 ft-lb out of a 1-7/8 inch barrel, which is adequate, and accuracy is OK out to a hundred feet. More power than that, and recoil pain starts becoming a bit of an issue in a 12 ounce gun.