Is this a properly deburred flash hole?

Discussion in 'Reloading' started by diderr, Sep 13, 2012.

  1. diderr

    diderr Well-Known Member

    Messages:
    432
    Joined:
    Dec 16, 2007
    is this flash hole properly de-burred? I bought one of these tools when I first got into reloading, but never really used it since. LOL. Is this set too deep?
    [​IMG]
    Thanks.
     
  2. Gene

    Gene Well-Known Member

    Messages:
    1,326
    Joined:
    Jan 23, 2007
    Hard tell with the black background. The idea behind deburring the flash hole is to remove particles of the punched internal brass. Just smooth those out and you are good to go.
     

  3. baldhunter

    baldhunter Well-Known Member

    Messages:
    446
    Joined:
    Jun 18, 2008
    Looks a little deeper than it needs to be,but it should not hurt anything.I just remove the burr and stop when I feel it's gone.I find some cases need very little work,but then there are a few that you can really feel the burr.
     
  4. johnnyk

    johnnyk Well-Known Member

    Messages:
    1,731
    Joined:
    Dec 24, 2001
    You've de-burred it slap in two!!

    I feel for a resistance, which is the burr(s). Once that's gone, I'm done with that case. Never have to do it again. JohnnyK.
     
  5. 7 loader

    7 loader Well-Known Member

    Messages:
    256
    Joined:
    Oct 9, 2009
    Looks good to me.
     
  6. Derek M.

    Derek M. Well-Known Member

    Messages:
    2,417
    Joined:
    Jul 12, 2004
    The purpose of deburring is exactly that: debur only. You are not supposed to "ream" the hole. One quick turn and you should be done.

    I can't tell from the pic but you must be damn strong because you split the case long ways. :D
     
  7. J E Custom

    J E Custom Well-Known Member

    Messages:
    7,310
    Joined:
    Jul 29, 2004
    This is a case of "Less is more".

    Some flash holes will have a fingernail on one side and this affects the flame front.

    It needs to be removed only to the surface of the case web (Flush). more is not nessary
    and may weaken the web.

    To much chamfer will also effect the flame front(Burn)of the powder by dispersing it, so I would
    back off a little.

    J E CUSTOM
     
  8. diderr

    diderr Well-Known Member

    Messages:
    432
    Joined:
    Dec 16, 2007
    I just did the brass for my 300wm. I could definitely feel that some had more "grab" than others. I just went until the "grab" stopped and set the depth adjustment and did all the others with that depth.