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Thread: Opinions wanted

  1. #1
    Expert Carpenter's Avatar
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    Opinions wanted

    Today, I was having some problems with the XCR. I ended up putting it away because the situation was such that trouble shooting was not realistic.
    At home, cleaning, I found that I imagine the firing pin is broken. No big deal, have a spare bolt and several pins.
    It appears to have broken, and jammed forward, with the tip projecting far further than it travels ordinarily.
    My question is this... could that cause an out of battery kaboom (or whatever it is meant to be called)?????? It looks to me like it could easily have, but I really don't know?
    I am working on a picture. Thanks for any input, as I am only learning.
    hope for the best, prepare for the worst, and make hay while the sun shines!

  2. #2
    XCR Guru BuddyChryst's Avatar
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    Re: Opinions wanted

    I suppose if it was stuck hard enough, it could. But I'm no expert.

    I found a similar issue on my P229, but I didn't experience any failures. I had read a story about a police officer/detective that had gotten killed when his holstered SIG slid off a stack of papers he was carrying, hit the floor and discharged. The firing pin safety should have prevented it from happening, but apparently it was determined that he was using a holster not designed for his pistol. In order to get the retention snap to close, he would pull the trigger and thumb the hammer forward. He would keep pressure on the hammer as he holstered and snapped the strap. This resulted in the hammer not returning to its neutral position and kept the firing pin safety disengaged.

    Anyway, I as took my pistol out to recreate those circumstances (unloaded, of course) I found my firing pin was sticking out of the hole. A little nudge and it would return. I don't know how long it had been broken, and it didn't take much force to recess it. Just pressing against a cartridge would suffice.

    So I guess it depends on which requires more force: pushing the broken pin back in, or igniting the primer.

    Of course, the XCR has a bolt where the firing pin hole is recessed, instead of a pistol with a flat breech face. So I think I would expect stuck pin would induce a failure to feed before an AD. In other words, I'd expect the pin to catch the rim of a cartridge preventing the case from sitting where the pin could line up with the primer. Still, if the stars aligned, I could see a kaboom.

    Again, that's just my completely inexpert analysis.
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  3. #3
    Expert Carpenter's Avatar
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    Re: Opinions wanted

    Quote Originally Posted by BuddyChryst View Post
    Of course, the XCR has a bolt where the firing pin hole is recessed, instead of a pistol with a flat breech face. So I think I would expect stuck pin would induce a failure to feed before an AD. In other words, I'd expect the pin to catch the rim of a cartridge preventing the case from sitting where the pin could line up with the primer. Still, if the stars aligned, I could see a kaboom.
    There where FTF prior to shelving it, so I think you are right. I regret not looking closer at the problem now. I could have swapped the bolt and been GTG.
    I was having a hard time picturing the geometry of the situation highlighted above. I think you have it though. I wasn't expecting a firing pin to affect feeding.

    ETA. Thank you!
    hope for the best, prepare for the worst, and make hay while the sun shines!

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  5. #4
    Expert Carpenter's Avatar
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    Re: Opinions wanted

    Here is a picture... it is stuck pretty hard, it would hit a primer if it made contact I imagine.
    Attached Thumbnails Attached Thumbnails Opinions wanted-fp-.jpg   Opinions wanted-fp-.jpg  
    Sean K. likes this.
    hope for the best, prepare for the worst, and make hay while the sun shines!

  6. #5
    XCR Guru BuddyChryst's Avatar
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    Re: Opinions wanted

    The bolt lug on the bottom right of the photograph is what strips the round from magazine. It doesn't sit into the recessed bolt face right away. So I'd expect the top rim of the case to catch on the firing pin before the round could line up with the primer. That could make the cartridge tip up, or prevent it from hitting the feed ramp right.
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  7. #6
    XCR Guru Sean K.'s Avatar
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    Re: Opinions wanted

    Out of battery kaboom or a slam fire seem plausible. But, it would all depend on whether that firing pin has any 'give' to it.

    It's rather disconcerting that these rifles (after all this time) still have broken firing pin issues.

    "Necessity is the plea for every infringement of human liberty. It is the argument of tyrants; the creed of slaves."-William Pitt the Younger

  8. #7
    Newbie Kringus's Avatar
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    Re: Opinions wanted

    I had the same problem about 2 weeks ago. Because the pin was so far forward it caught the round before it went into the chamber and did not seat the round in the bolt. So it probably would not have an out of battery kaboom. Just as BuddyChryst described.

  9. #8
    Newbie Ace_Phoenix's Avatar
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    Re: Opinions wanted

    Seems as I've been digging around in this forum that firing pins breaking is a fairly common occurrence. I suppose probably just as common as on an AR though? I wonder if there is some kind of issue with the tempure of the steel or something.

  10. #9
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    Re: Opinions wanted

    Just wanted to ad that the pin is jammed forward pretty well. Cant "nudge" it back in by hand.
    hope for the best, prepare for the worst, and make hay while the sun shines!

  11. #10
    XCR Guru Merlin's Avatar
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    Re: Opinions wanted

    Quote Originally Posted by celiajean View Post
    Just wanted to ad that the pin is jammed forward pretty well. Cant "nudge" it back in by hand.
    Pictures when you get it out, please.

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