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9mm XTP Crooked Seating: PROBLEM SOLVED

Discussion in 'Reloading' started by Meathead9, Sep 8, 2011.


  1. Meathead9

    Meathead9
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    My dad came by the house last weekend to see the grandkids. He works in Steel, so I showed him the problem I was having with the Dillon 9mm seater plug & XTP's. The narrow tip of the 9mm XTP was creating issues seating straight consistently, because the only part that made contact with the seater plug was the very tip. They wouldn't seat straight more than 50% of the time.

    He had one of his machine shop guys make me a custom seater plug, using a Dillon plug and a couple XTP's for a template. I now have a die that is dead nuts perfect for the 9mm XTP (and Montana Gold from what I hear). I loaded a couple 9x25 Dillon rounds, and they are 100% straight as far as the eye can tell.

    The Dillon plug is on the left, the custom plug on the right. Notice how much room there is around the XTP in the Dillon plug. The custom one fits it like a glove.

    [​IMG]

    [​IMG]
     

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    #1 Meathead9, Sep 8, 2011
    Last edited: Sep 8, 2011
  2. Zombie Steve

    Zombie Steve
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  3. Colorado4Wheel

    Colorado4Wheel
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    The one on the right looks like the Lee seating plug.
     
  4. Meathead9

    Meathead9
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    Unless the Lee plugs are identical to the Dillons, then your eyes deceive you my friend. It was fresh made this morning from a piece of stainless round bar. The only thing different is Dillon machines out a section to identify the caliber of the plug.
     
  5. Colorado4Wheel

    Colorado4Wheel
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    I am talking about the shape. Lee has a very deep cone shape like the one you had made. Dillon is shallow and has a flat part at the end.

    Glad you got it fixed. Looks very nice.
     
  6. Steve Koski

    Steve Koski
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    Beauty eh.
     
  7. WiskyT

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    Nicely done and obviously exactly what you needed. That "custom" plug will likely work with any other bullet you use too, so you can just make it your "normal" plug.

    Thanks for the follow up too.
     
  8. Boxerglocker

    Boxerglocker
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    That custom plug looks identical to the Redding competition seating die profile, works with just about anything as it seats using the circumference of the bullet ogive.
     
  9. Colorado4Wheel

    Colorado4Wheel
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    Which is how most of them work isn't it?

    My thought is that Dillon one looks like crap and the Custom one looks like how all my Lee ones look? I guess I am just confused. I have a RCBS that is a little shallow like the Dillon. I don't know why they would make them so shallow.
     
  10. Boxerglocker

    Boxerglocker
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    Jacks #1 Fan

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    The Dillon ones in .40 flat point fit better for that caliber, the 9mm ones not so much. The reality is there are so many bullet profile and they can't possibly please all of the people all of the time.
     
  11. Meathead9

    Meathead9
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    Good to know.

    The best thing about my new seater plug, is that it was free. I don't get to say this very often, but it definitely pays to know people...
     
  12. Colorado4Wheel

    Colorado4Wheel
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    That Dillon one in the first picture would have worked fine if they just made the plug deeper using the existing profile. Nothing wrong with the profile. It's just not deep enough. All my Lee's carry the same basic taper till it runs out. It's a double radius of some sort. But they don't stop into a flat. Same with the RCBS one I have it's just a lot more shallow. I prefer the deep version like what he got made in the first picture. I like Dillon but that seating plug is junk for 9mm.
     
  13. Meathead9

    Meathead9
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    I just noticed that you can see a wear mark on the flat part of the Dillon plug, where the tips of the XTP's were hitting.

    The Dillon plug probably works just fine for wider profile 9mm JHP's like Nosler & Sierra. I still think the angle wouldn't fit the XTP even if the plug was deeper. It would definitely work better than the current plug though.

    I wish I had some Nosler, Sierra, Montana Gold & Zero 9mm JHP's to show a side-by-side comparison of the different profiles.
     
  14. Boxerglocker

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    The standard 9mm RN profile worked fine for the me on PD FMJ and MG JHP's

    I could see them not working for several others though.