One last thing; I don't trim my .40 S&W cases. With my process, I fold the case back into the hollowpoint, the same as Speer does with their Gold Dot bullets. Due to how thin the .40 S&W brass is, compared to normal .44 jackets, they expand "with aplomb" in soft tissue or media. Due to the core bonding, the only way I can separate the cores from the jackets after recovering them, is to melt the cores out of the jackets.
My bullets are made with C-H Swaging Dies and the cores are cast from pure lead.
Hope this helps.
Fred