Playing around with the LEE push through die and the punch that comes with it puts a bleed by ring on the .223 cartridge base. I'm told that cutting the cartridge and using the larger internal punch is the way to go. The punch for the whole case would be some thing less than .223 and could not take the use causing the punch to bend. I'm only reducing .223 cases to .357 jackets. The punch would be something less than 2" long. This is just an experiment till I have a proper jacket reducing die. Any thoughts?