Quantcast
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

9mm Shell hangs up in the Expander

Discussion in 'Handloading and Reloading' started by Furncliff, Aug 13, 2013.

Thread Status:
Not open for further replies.
  1. Furncliff

    Furncliff Member

    Joined:
    Dec 10, 2005
    Messages:
    2,216
    Location:
    Western Slope of Colorado
    9mm... Lee dies ...initial set up... Hornaday LNL AP. The shells are hanging up in the expander when the die lets go of the shell there's a hitch in the press. I can repeat this issue with the die removed from the press so I don't think it's a timing problem. I've contacted Lee, they suggested polishing the nose of the expander, I had already done this with 440 grit paper but perhaps it needs more? Just concerned with taking it too far.
     
  2. higgite

    higgite Member

    Joined:
    Dec 17, 2009
    Messages:
    788
    If it's the powder through expander, the hitch is intentionally built in to jolt the powder dispenser to help break up any powder bridging.
    http://leeprecision.com/cgi-data/instruct/powthru.pdf

    If the jolt is excessive, you may have the die turned in too far and overexpanding your cases. But, some jolt is supposed to be there.
     
  3. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    45,705
    Location:
    Alabama
    Or it is so rough it needs polishing. If your powder drop needs a jolt to drop powder, you have other problems. Polish the expander plug.
     
  4. gamestalker

    gamestalker member

    Joined:
    Sep 10, 2008
    Messages:
    9,832
    Location:
    SW Arizona
    As said, this is an intended function of the powder thru die with Lee dies. It's purpose is to make sure all of the powder drops. Similar to tapping the funnel when powder stalls or funnels up.

    GS
     
  5. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    45,705
    Location:
    Alabama
    Lee is a brilliant advertiser. Polish the expander plug.
     
  6. eam3clm@att.net

    eam3clm@att.net Member

    Joined:
    Dec 2, 2010
    Messages:
    760
    Cycle the press slower and see if that helps. You just want to go fast enough that the case glides out of the die. I have the same set up and your expierence mimics mine. The expander plug floats inside the die. As you lower the ram the expander follows the case until it hits its stop. At this point is where you get the sudden resistance as the expander plug is pulled from the case. The faster you go the more it will feel like a jolt.
     
  7. noylj

    noylj Member

    Joined:
    Jul 27, 2007
    Messages:
    1,069
    1) Polish, but not excessively. Often, the expander (of any brand) is already slightly too small.
    2) Call Lee, discuss and exchange
    3) Apply graphite to expander plug
    4) Cycle slower. Slower is often better.
    5) Some people use Imperial Wax on expander OD for smoother operation
    6) Some slight jerk is good. This goes for all measures.
     
  8. GLOOB

    GLOOB Member

    Joined:
    Sep 16, 2007
    Messages:
    5,940
    Well, there IS a fraction of an inch of free-float up/down movement on the expander ring. No matter how well machined an expander plug is, it WILL grab onto the brass. This is taken advantage of in the LEE powder-thru dies. As the brass is lowered, the expander ring lowers with the brass, while the die body remains still. If you're working the press fast, this gives the powder a little extra time to funnel into the case. Then when the expander reaches the end of travel, the "hit" will help any kernels that might be stuck to break free.

    It's not like Lee couldn't make the expander ring stationary for the same cost. If you do not like this feature, you could probably unscrew it and install a shim in there. But if your expander ring is rough, it'll still stick.
     
    Last edited: Aug 13, 2013
  9. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    45,705
    Location:
    Alabama
    I think it is a good by product of an expander plug that is too rough. Yes, it gives extra time, but time that isn't really needed.

    Me? I make sure everything my dropped powder goes through is slick with a long angle to it.

    Yes, it will, but smooth ones don't jerk the works when coming out.
     
  10. Furncliff

    Furncliff Member

    Joined:
    Dec 10, 2005
    Messages:
    2,216
    Location:
    Western Slope of Colorado
    Thanks all. I appreciate your input. I'll do another polish, but I think I'll probably wind up installing the Hornday dies that arrived this afternoon.
     
  11. higgite

    higgite Member

    Joined:
    Dec 17, 2009
    Messages:
    788
    Maybe "jolt" was too harsh a word on my part. gamestalker said it better, more like a tap. I equate it to the "tap, tap" of the handle that a lot of folks, myself included, do with a drum measure. Whether it's necessary or not is a matter of conjecture. The little tick in my Lee PTX doesn't bother me. ymmv :)
     
  12. greyling22

    greyling22 Member

    Joined:
    Aug 6, 2007
    Messages:
    4,271
    Location:
    East Texas
    it's fairly normal. that said, if it was a better machined part and not so rough it could be a lot smoother. but then it would cost more........ I polished mine up some, however if you go too far you don't expand enough and the lead bullet starts getting swagged down so it's a balancing act that I probably haven't mastered.
     
  13. Walkalong

    Walkalong Moderator

    Joined:
    Nov 20, 2006
    Messages:
    45,705
    Location:
    Alabama
    I tap my press handle and it takes the place of tapping the measure handle which is operated automatically by the linkage being operated by the sub plate.
     
  14. max it

    max it Member

    Joined:
    Jan 26, 2011
    Messages:
    46
    Location:
    **********, are we done yet?
    HI Ya, my short answer is the same as other 9mm brass issues; get a undersized sizing die from Evolution Gun Works. But I am not quite sure of where the hang up in your setup is. I hope you post after installing the Hornaday dies
     
  15. BBQJOE

    BBQJOE Member

    Joined:
    Mar 13, 2007
    Messages:
    736
    Location:
    ARIZONA
    which also causes displacement of the next primer going into its station for some flipped and squished results.
     
  16. higgite

    higgite Member

    Joined:
    Dec 17, 2009
    Messages:
    788
    I use a Lee Pro Auto Disk and PTX setup on a RCBS Pro 2000 with APS primers. I haven't had that problem. When I used the same powder drop setup on my Lee turret, I hand primed, so I was still unaware that it caused primer problems. But, I see your point if priming on some presses.
     
  17. noylj

    noylj Member

    Joined:
    Jul 27, 2007
    Messages:
    1,069
    Never had a primer flip on my L-N-L, and I had a REALLY rough expander I sent back to Lee.
     
Thread Status:
Not open for further replies.

Share This Page