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Reloading Berger Bullets

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bolt face erosion??

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  #1  
Unread 01-17-2010, 11:23 AM
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Join Date: Feb 2009
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bolt face erosion??

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.

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  •   #2  
    Unread 01-18-2010, 06:35 AM
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    Re: bolt face erosion??

    From leaking primers, but does not affect its functioning. Check out all the soot residue around the bolt face. Needs a good cleaning.
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      #3  
    Unread 01-18-2010, 08:49 AM
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    Re: bolt face erosion??

    Pretty nasty looking if you ask me.
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      #4  
    Unread 01-18-2010, 09:32 AM
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    Re: bolt face erosion??

    Quote:
    Originally Posted by Frogman77 View Post
    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.

    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.

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      #5  
    Unread 01-18-2010, 12:25 PM
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    Join Date: Feb 2009
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    Re: bolt face erosion??

    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.
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