bolt face erosion??

Discussion in 'Reloading' started by Frogman77, Jan 17, 2010.

  1. Frogman77

    Frogman77 Well-Known Member

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    Feb 1, 2009
    is the narrow dark ring around the firing pin hole considered bolt face erosion? Is this from leaking primers? or is this normal after firing? This isn't my bolt, I found this pic on another forum.

    [​IMG]
     
  2. Gene

    Gene Well-Known Member

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    Jan 23, 2007
    From leaking primers, but does not affect its functioning. Check out all the soot residue around the bolt face. Needs a good cleaning.
     

  3. Chas1

    Chas1 Well-Known Member

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    Pretty nasty looking if you ask me.
     
  4. J E Custom

    J E Custom Well-Known Member

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    If it is actually a groove It is from a continued diet of hot loads and/or loose primer
    pockets.( very bad ).

    By the looks of the bolt, cleaning is in order and then inspection. It might be primer seal
    from shooting military ammo that has built up over time due to improper cleaning.

    If it is just a build up of the primer seal (It's like fingernail polish) then it just needs cleaning

    If it is erosion it has gone to far and should be replaced because of continued overpressure
    loads that could have over stressed the bolt. This condition is NOT normal and should be
    stopped for safety purposes.

    J E CUSTOM
     
  5. Frogman77

    Frogman77 Well-Known Member

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    thanks guys,

    I'm getting a similar ring around my firing pin hole, but it comes off with cleaning. My pockets are still tight when seating primers. someone suggested I try a primer pocket uniformer to improve the seal. I'm gonna give that a go and work my load up again. No other pressure signs at this time.