Misfire when changing barrel

Discussion in 'Maverick 88 Pump Action' started by Blindhawg1, Sep 24, 2017.

  1. Blindhawg1

    Blindhawg1 Copper BB

    Messages:
    5
    Mav 88 with 18" barrel runs without missfires. When I added a used 28" barrel with choke tubes I got misfires. The next weekend I reinstalled the long barrel and ran 25 rounds without a hitch. Today I reinstalled the long barrel to pattern it with full choke and 3" turkey loads. Click, no bang! Retried several times with nothing but light primer dents. It fired the same round with the short barrel, no problem. Both barrels lock up tight in the receiver. There is a gap no more than 1/32" between the barrel lug and mag tube with either barrel. Any ideas?
  2. CaddmannQ

    CaddmannQ 12g Supporter

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    5,169
    Is one barrel counterbored deeper than the other one?
  3. Blindhawg1

    Blindhawg1 Copper BB

    Messages:
    5
    With unfired shell in the barrel, .002" difference. The "good" barrel is deeper. image.jpg
  4. CaddmannQ

    CaddmannQ 12g Supporter

    Messages:
    5,169
    Okay now add in the gap between the receiver and the barrel for each gun and see what the difference is.

    In the case of my Ranger just 0.005" was the difference between a reliable strike and an unreliable one.

    That being said, I have seen shotgun shells with poorly seated primers that did not fire on the first shot because the primer itself moved a bit on the first strike. Some of those were like that from the factory and some were ones I reloaded.
  5. Blindhawg1

    Blindhawg1 Copper BB

    Messages:
    5
    28" is going back to Mossberg. They suspect a clearance problem. Thanks for the reply. I'll advise outcome later.
    LTB45 and old mossy like this.
  6. nitesite

    nitesite Ammo Nerd Forum Moderator "Philanthropist"

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    4,872
    Please let us know.
  7. CaddmannQ

    CaddmannQ 12g Supporter

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    5,169
    I'm surprised they didn't ask for the receiver as well.
  8. Blindhawg1

    Blindhawg1 Copper BB

    Messages:
    5
    Received a brand new barrel today!
    meanstreak, CaddmannQ and Djcala like this.

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