>Those who like semi-wadcutters but who don't cast (and don't wish to start) can get either hard-cast or plated semi-wadcutters from Berry's Manufacturing.

Two points:
1) You don't need hard cast for .45 auto and are much better off with 8-11 BHN alloy (and swaged tend to be just a bit more consistent in weight and dimension)
2) He asked for accurate loads, so, are plated really appropriate for Precision Pistol competition?