Redding makes a push thru die for the .40. Takes the bulge out, and if you want, they have a plastic bottle and adapter that screws on top, to collect the brass. Years back, a friend of mine, who is a retired machinist, took my Lee .40 carbide sizing die, and cut off the top, and basically did the same thing. Machined out a rod that slipped into the shell holder and pushed the brass out the top. gypsyman