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BT100 Missfires

Discussion in 'Shooting Related Threads' started by DustyOne60, Apr 6, 2012.

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  1. DustyOne60

    DustyOne60 Active Member

    Joined:
    Feb 21, 2012
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    BT100 had several missfires recently. In the middle of a round I would shoot, break it open, reload, close the gun and when I pulled the trigger, nothing happened. After a full recycle it was okay. This happened a few times.

    Is this a big fix?
    Will it get worse?
    Am I doing something wrong?
    Any suggestions would be appreciated.

    Cheers, DustyOne60
     
  2. hmb

    hmb Well-Known Member

    Joined:
    Jan 29, 1998
    Messages:
    9,411
    First step is a good cleaning and look for a broken part while doing it. HMB
     
  3. Grade VI

    Grade VI Member

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    Location:
    Northwestern PA.
    Check the hammer spring. If the spring is broken, the hammer won't have enough force to hit the primer. The same thing happened to me. I thought that the primers were set too deep in the shells because some would fire and others would not. A good cleaning is always a good place to start too.
     
  4. Grade VI

    Grade VI Member

    Joined:
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    Check the hammer spring. If the spring is broken, the hammer won't have enough force to hit the primer. The same thing happened to me. I thought that the primers were set too deep in the shells because some would fire and others would not. A good cleaning is always a good place to start too.
     
  5. Grade VI

    Grade VI Member

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    Make sure that you are opening the gun far enough to cock the trigger.
     
  6. TOOLMAKER 251

    TOOLMAKER 251 Active Member

    Joined:
    Jan 29, 1998
    Messages:
    3,398
    Remove your firing pin, sounds like it is broken in the radius of the shoulder and is keeping it from falling out the front.
     
  7. Fraz

    Fraz TS Member

    Joined:
    Jan 29, 1998
    Messages:
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    Just went through this BT 100 problem, my fault should have had the gun gone through.
    Do all of the above, Clean, new spring, change the firing pin, she'll be good as new. I try to plan to do it every two years, depending on my shooting.
     
  8. RWT

    RWT Well-Known Member

    Joined:
    Jan 29, 1998
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    1,553
    What Grade IV and Toolmaker said.

    Plus take a good look at the sear for any debris. and a good cleaning.
     
  9. bceagle

    bceagle TS Member

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    Mar 9, 2006
    Messages:
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    I have experienced this exact same problem, it was a broken firing pin, it happened to me during a state shoot, no fun but a real easy cheap fix, Brownells stocks parts for BT100s
     
  10. Pull & Mark

    Pull & Mark Well-Known Member

    Joined:
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    5,410
    Browning stocks parts for the BT-l00 as well. Sometimes for alot less money!!! While Browning will take many months for a repair under warrenty, they ship out parts you pay for very fast. Best of Luck with your gun. Check the top lever spring as well. Check the top lever spring also!!! Break em all Jeff
     
  11. Itchyb

    Itchyb TS Member

    Joined:
    Oct 19, 2011
    Messages:
    133
    When mine did this, there was an itty-bitty spring that had broken. Wasn't the trigger spring but rather a spring in the trigger mechanism. If you turned the gun upside down, it would fire just fine.
     
  12. Bill Roberts

    Bill Roberts Active Member

    Joined:
    Feb 26, 2009
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    1,237
    There's a guy on this site that sells spring kits for BT 100. I think it J&P
    Do a search. I keep an extra kit in my shooting bag. Always someone
    At the shoots who know how if you have the springs and pin.

    Bill
     
  13. CalvinMD

    CalvinMD Well-Known Member

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    Location:
    Northeastern MD @ the top o the Bay
    If you find a broken firing pin,..do yourself a favor and replace with a titanium part...there are a few places still offering these...it will be the last one you ever need
     
  14. Borderland

    Borderland Member

    Joined:
    Aug 10, 2008
    Messages:
    251
    Gary is correct..is the hammer falling but with too little impact on the primer or is it failing to cock. I just replaced my BT100 mainspring(hammer) because the hits were too light to ignite the primer about 5% of the time. The old spring was about 3/16 shorter than the new even tho it still seemed plenty stout.

    If it is failing to cock - check the push rod with the roller tip that actually resets the hammer. I keep this well greased because it seems fragile and highly stressed in relation to the job it must perform.
     
  15. chris42

    chris42 TS Member

    Joined:
    Jan 21, 2010
    Messages:
    1
    you may need a new cocking bar solved my problem
     
  16. Shooter R

    Shooter R Active Member

    Joined:
    Dec 13, 2008
    Messages:
    509
    I read your post twice. First you said you had several misfires. That could be a broken fireing pin, or a lot of debris in the pin's tunnel.

    Then you said you pulled the trigger and nothing happened. That could be a whole bunch of other problems. You need to be more specific.
     
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