Is it possible...loading 380s using 9mm dies.

Discussion in 'The Ammo & Reloading Forum' started by jdon72, Sep 30, 2012.

  1. jdon72

    jdon72 New Member

    Joined:
    Feb 3, 2009
    Messages:
    340
    Soooo....with the exception of the sizing die and obvious loads, can you use the 9mm seating and crimp dies for the 380. It is the same diameter bullet.

    I believe it should be possible, but any input is appreciated.

    J
  2. woolleyworm

    woolleyworm Active Member

    Joined:
    Feb 23, 2009
    Messages:
    4,952
    Location:
    SW Fort Worth
  3. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    nope 9mm has a slight taper to it and .380 is as straight wall as they come. not to mention the .380 is 2 full MM shorter in length
  4. jdon72

    jdon72 New Member

    Joined:
    Feb 3, 2009
    Messages:
    340
    Woolley, thanks for the post, but I actually read that before I posted.

    JLA, why not. You would just adjust the dies deeper to make up for the shorter case. Not using a sizing die on new brass, the bullet is the same size as 9mm... .355. To seat and crimp, the 380 will fit in he die, but will it seat straight? Crimping, it should not matter....the die just goes over the head and crimps, not the whole case.....right.
  5. X Ring

    X Ring Member

    Joined:
    Mar 23, 2011
    Messages:
    256
    Location:
    Ohio
    You can't get a 380 case deep enough into the die to get a crimp. Dies don't cost all that much.
  6. jdon72

    jdon72 New Member

    Joined:
    Feb 3, 2009
    Messages:
    340
    X-ring,

    The crimp is at the bottom of the die. It just goes over the head and it is done. Similar to lee full length die.
    My dies are costly and am on a waiting list. If they were only a hundred or two, it would be no big deal. But they are considerably more.

    J
  7. CampingJosh

    CampingJosh Well-Known Member

    Joined:
    Sep 25, 2007
    Messages:
    5,482
    Location:
    Indiana
    The diameter of the bullet is about all that's shared.

    380 ACP.jpg
    9mm Lugar.jpg

    As you can see from these drawings, the "9mm Short" is not simply a shortened 9mm. Those few thousandths are very significant.

    Where are you buying dies? I buy sets for under $40 all day.
    Last edited: Sep 30, 2012
  8. howlnmad

    howlnmad Well-Known Member

    Joined:
    Nov 26, 2008
    Messages:
    4,578
    Location:
    Harriman, Tn
    Your dies crimp at the bottom :confused: ? What brand dies are these?

    You can run the seating die all the way through your press and it won't drive the brass any deeper than the top of the shell holder.
  9. jdon72

    jdon72 New Member

    Joined:
    Feb 3, 2009
    Messages:
    340
    I bought an old auto load machine for 38 and 9mm conversion. It is over 40 years old and puts out alot of ammo. I got a good deal. The dies have to come from ammo load load and they are expensive.
  10. X Ring

    X Ring Member

    Joined:
    Mar 23, 2011
    Messages:
    256
    Location:
    Ohio
    That is the way my dies work.
  11. howlnmad

    howlnmad Well-Known Member

    Joined:
    Nov 26, 2008
    Messages:
    4,578
    Location:
    Harriman, Tn
    Which way is that? I install the proper shell holder in the ram and then a piece of sized brass. Start my seater die into the press and fully raise the ram. I screw the die in until it just touches the case mouth. I back the seating stem way out.I lower the ram and set a bullet on the case and raise the ram then screw seater stem in until I achieve proper length. I back the stem out a half turn and then agjust the die body to set the crimp. Lock the die body ring down and then adjust the seating stem to just touch the bullet. That makes all the processes done in the upper section of the die body.
  12. CampingJosh

    CampingJosh Well-Known Member

    Joined:
    Sep 25, 2007
    Messages:
    5,482
    Location:
    Indiana
    Got it! Yeah, proprietary dies make a big difference.

    If you're going to be loading many calibers, you should really consider moving to a modern progressive press (Dillon or Hornady). You'll have all your money back within 4 die sets, and that's if you keep the Auto Load.

    You may also be able to get a local machine shop to make you some adapter fittings that would let you use standard dies in your machine. I'm not sure it's possible, but it's at least worth looking into. A set of three custom adapters shouldn't be more than $150 at the most, and you could use them for every caliber.
    Again, not sure if it's possible, but it's worth looking into.
  13. jdon72

    jdon72 New Member

    Joined:
    Feb 3, 2009
    Messages:
    340
    Camping josh,

    Yes your right, but then I need different shell slides and holders, bullet drops, etc....well, you all know I will try it, and I will get back in a week or so and let you know the results.

    J
  14. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    I see that IT WONT WORK is not something youre wanting to read.. So in that case.. Keep us posted on hoe your ammo turns out.
  15. jdon72

    jdon72 New Member

    Joined:
    Feb 3, 2009
    Messages:
    340
    JLA,

    Well...your right. I have not had any credible evidence to tell me it will not work. In theory, the dies should work....

    I was hoping that someone had tried it and we're going to give me an actual reason why it can not be done.

    I will be back in touch.

    J

Share This Page