Primer Blanking?

Discussion in 'Reloading' started by barnesuser28, May 3, 2012.

  1. barnesuser28

    barnesuser28 Well-Known Member

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    l experianced some primer blanking on some 300 RUM brass and was wondering if it was from loose primer pockets?
     
  2. boomtube

    boomtube Well-Known Member

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    "...was wondering if it was from loose primer pockets"

    Not really. More likely you have a weak firing pin spring or a loosely fitted pin hole or both. Try some Federal primers.
     

  3. Trnelson

    Trnelson Well-Known Member

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    Possibly bumping the shoulder too far back. Make certain your getting a proper fit in your chamber. You could have too much headspace for consistent ignition. YMMV
     
  4. Gene

    Gene Well-Known Member

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    I had it happen on a Rem 700 Rifle Basic trigger. It caused a small particle to break the sear engagement. Called RB and they sent me a new trigger. My smith felt it was a headspace issue.