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Paging Dr Jmorris

Discussion in 'Handloading and Reloading' started by Nature Boy, Mar 15, 2019.

  1. Nature Boy

    Nature Boy Member

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    Hey @jmorris

    Been having a frustrating issue with my 650 lately and figured you’re the man with all the answers

    Primers are sticking to the end of my decapping pins. Happens on all my dies now, regards of LR or SR primers, Redding, Widden, RCBS and Dillon dies.

    Researched it and the common answer is to sand a little bevel on the end of the pin. They all look like that bevel is already there so I’m stumped.

    Why is this doing it now across multiple dies when it never happend before?

    For those that aren’t familiar with this issue and why it’s a PITA with the 650, after decapping the spent primder rides the pin back up and semi-seats into the primer pocket. Then when your index to the next station you end up reseating the spent primer.
     
  2. Tilos

    Tilos Member

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  3. Texas10mm

    Texas10mm Member

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    Do your Dillon dies have the spring loaded decapping pin?
     
  4. Blue68f100

    Blue68f100 Member

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    I find polishing the tip rounded works best. You want it blunt enough not to hangup on the anvil and smooth enough it will not stick.

    I have a RCBS universal with the spring loaded tip. The supplied spring is too weak to work with the mil crimp. So I cut a spring that fits my AR for a replacement. Know it will launch the primer if I hit a crimped primer. :)
     
    Tilos likes this.
  5. jmorris

    jmorris Member

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    The spring loaded Dillon dies will generally do the trick.

    If I had every die doing the same thing I would change something about them.

    Take one of your extra Dillon pins or if you have the collet style RCBS dies and put an angle on the tip. If the primer exists and becomes not square with the pocket, there is little chance it could be sucked back into it.

    77142194-C698-4983-93AE-9144AF58C1AE.jpeg

    F8533EBD-B7F2-43DB-996A-AEED5376C0B5.jpeg

    If it doesn’t work or make things worse, you can flip the RCBS pin back over or swap the Dillon one with the one you took out.

    What brand of primers are they sticking to? If it’s a number of different brands, you might have some other issue but I can’t guess what that would be at this point.
     
  6. Nature Boy

    Nature Boy Member

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    No they don’t
     
  7. Nature Boy

    Nature Boy Member

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    Those are some good ideas.

    I called Dillon today and the tech said to grind the end of the pin flat. I tried that and it didn’t help. I’ll try your suggestions as well as @Blue68f100 ’s.

    The Dillon tech also asked if they were federal or CCI primers. I said both. He stated that those were more prone to sticking due to federal being softer and CCI recently changing their anvil. I don’t believe I’m buying that.
     
  8. jmorris

    jmorris Member

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    Flat won’t do any better than rounded, maybe worse. If they are actually clearing the bottom of the pocket, you want them anything but square so they can’t go back in.

    The spring loaded ones seem the be a hot ticket but They are not always needed.
     
  9. tightgroup tiger

    tightgroup tiger Member

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    I always blamed that on the punch pin sneaking up past the anvil and the anvil pushing sideways on it keeping the primer from dropping off, or it misses the anvil and isn't long enough to push the primer out due to the cup of the primer stretching out into a cone shape.
    I pick up a lot of Federal range brass the they do this a lot.
    I did some experiments in a single stage press trying to figure out what was tying up my LNL-AP and found that the punch pin WAS missing the anvil and punch pin was stretching the face of the primer cup out to a cone shape and not pushing the primer clear out of the case due to not hitting the anvil.

    I dropped the primer punch stem out as far as I could without the nut bottoming out in the case. That took care of almost all of it for me.
     
  10. jmorris

    jmorris Member

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  11. Tilos

    Tilos Member

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