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Is this normal wear? (Picture included)

Discussion in 'Mossberg 930 Autoloader' started by AngryWaffle, Apr 6, 2020.

  1. AngryWaffle

    AngryWaffle .22LR Supporter Elite Member

    Messages:
    18
    [​IMG]

    First time shooting it, I put about 250 rounds through it. Circled in red, it's a bit rough on the edge with visible wear. Is this something that needs to be addressed?
  2. OR3GUN

    OR3GUN Sponsor Sponsor

    Messages:
    220
    Take a look at the extractor (in the bolt) and make sure that it is moving freely against the spring. It is tough to tell severity from that angle, but while some finish wear in that area is normal it shouldn't gouge or deform anything. If you can take the gun down and get pictures of the chamber and extractor that will help verify the condition of things.

    William

    http://www.OR3GUN.com
    meanstreak and AngryWaffle like this.
  3. AngryWaffle

    AngryWaffle .22LR Supporter Elite Member

    Messages:
    18
    Actually I just tore my gun down to put in some parts from your security combo.
    [​IMG] [​IMG]
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  4. OR3GUN

    OR3GUN Sponsor Sponsor

    Messages:
    220
    Your extractor does look a bit more 'mis-molded' than most. It is a MIM part and they sometimes end up with an off-set seam. Yours is quite pronounced and is making an impression on the thin edge of your chamber. This can cause shells to hang up on the way in.

    If it were ours, we would order up a replacement extractor for a spare and stone the original down. It is a hardened part, but it should stone fine and that depth and hold for many thousands of rounds. Once smoothed out, hone and polish the chamber, taking care to correct the geometry where the extractor was making contact. You should be good to go.

    Here is a link to the replacement extractor:

    https://www.mossberg.com/store/930-935-extractor-14980.html

    We normally have a few of these in-house, but I couldn't find them today at the shop. Things have been a bit crazy lately and they must be buried deeper than usual.

    Thanks!

    William

    http://www.OR3GUN
    AngryWaffle and fellmann like this.
  5. AngryWaffle

    AngryWaffle .22LR Supporter Elite Member

    Messages:
    18
    I wish I would have read your post before! I ended up taking a fine sand sponge and went to town on the extractor. Then I did minimal polishing where the extractor was making contact. The seam is bit less pronounced and smooth. I'll go back and smooth it out completely.

    Thanks!
  6. Bobster

    Bobster .30-06 Supporter

    Messages:
    2,608
    Glad you got it sorted. This is why a new gun should be inspected, cleaned and lubed before taking it to the range. A little work with a stone or jeweler's file to clean up seams from molded parts and sharp edges from stamped parts will go a long way towards the longevity of the gun, IMO. Why "break-in" a gun when you can "ease" it in... ;)

    BTW, Welcome Aboard, Waffle! :)
  7. AngryWaffle

    AngryWaffle .22LR Supporter Elite Member

    Messages:
    18
    Agreed. If I would have continued on without questioning it, or just assumed I was breaking it in I think my chamber would have been chewed up to the point where I'd start seeing malfunctions. And thanks!

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