Modern Sporting Rifle Evolution
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Funnyfarm

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Reply with quote  #1 
I just recently installed a Larue MBT2S trigger.  I have been very pleased and it has performed without issue at the range and hog hunting.  However, without notice it failed last night.  I found the culprit of much property damage and was on him.  Pulled the trigger and nothing.  Rechambered and not even a click.  I pulled rear pin and exposed trigger assembly.  I found that the hammer was stuck in cocked position.  I could pull trigger and push the hammer forward.  It was stiff and would even stop/stall/hold in between cocked and fired position.  I worked it back and forth and it loosened up some but wasn't free.  Eventually I got it loosened up enough to shoot said hog.  I hit him bad and he ran sideways to me.  Gun failed to fire a second shot.  I reworked hammer but it seemed no better.  Then after unloading gun and heading home the trigger began to work fine.  I have pulled the hammer out, looked at it and reinstalled.  Nothing seems to be out of place, shiny where rubbing or dirty.  Has anyone ever had such an issue?
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RangerJoe

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Reply with quote  #2 
I have no experience with the Larue trigger... but what you are describing sounds like the result of blown primer getting caught up in the action.  That, unfortunately, I do have experience with.
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Funnyfarm

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Reply with quote  #3 
I believe that you have nailed that on the head. I swap between two uppers. The last time this lower was shot I had my first experience with blown primers.  The blown primers were just the other day.  I shot it several more times with safe loads and it went in the bag.  I pulled it out last night, mounted on a different upper and took off. 

I'll dismantle again and look for the problem primer.  I suspect it is long gone.

Thanks
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Funnyfarm

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Reply with quote  #4 
I found the primer.  It must have fallen out when I removed the hammer.  It was laying in the floor by my desk.  I am much happier!!
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RangerJoe

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Reply with quote  #5 
Most of us learn by experience... unfortunately, BAD [nono] experience makes a powerful teacher! [biggrin]
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kshunter

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Reply with quote  #6 
Sounds like a good call by RJ ๐Ÿ˜Ž

I have the same trigger and really think itโ€™s a great value!
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