I had a machine shop make up some push through dies for me several years ago. Wasn't too impressed by the finish of the final product. Rough on the outside I can live with, but when the inside was just drilled straight through, and no polishing done whatsoever, it was disappointing, especially when there was no meat left to work with. Price was about $40 each die. I wanted them in the .300 to .305 range, and the next time I think I will go with the LEE route, or find an actual shop that deals with firearms and knows what needs to be done. A general machine shop isn't interested in doing fiddley work.