I have been using hard cast lead for many years in revolvers, but only recently began loading it for use in my semi-autos. I started with the old standard target loads (200 grain SWC) for .45auto and have recently begun to load for 9mm also. I currently get my boolits from Penn or Gardners Cache, but might start casting my own. I get good performance with lead and have not had any problems with cleaning. My XDMs and 1911 seem to feed them well and the semi wad cutters sure make nice round holes in paper.