I have the decapping chamber, the muzzle resizer die(38-40-MR), the priming chamber, and what looks like the bullet seating die(38-40-DA), but it also looks like the shell exp. chamber on the box, but has what looks like crimp space inside and a bullet depth screw. I also have two others, one which looks like a bullet resizing die, has # 401 on the die itself, and the # 43 on the push rod. The other die when screwed all the way inward has what looks like a cone with a flat top, and has # 401 on the piece that screws into the die, it also has a lock ring, I thought it could be a case expansion die, but it just doesn't have the code on it, nor does it look like the one on the box. If only I could unscrew it all the way out of the die, it has no grip area, only threads, and its in there good.