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Thread: First malfunction on my LMT about 78 rounds in!

  1. #1
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    First malfunction on my LMT about 78 rounds in!

    I have a new LMT CQB MRP 16", and I just had my first malfunction. A couple weeks ago I was able to shoot 40 rounds of Remington Express Rifle 55gr 223 without a problem. I did not clean the rifle, and shot 40 more rounds today of my work practice ammo. This ammo is Lellier & Bellot FMJ/193 55gr. I see it is made in the Czech Republic. Never heard of this ammo before, but I wouldn't be surprised if it was really cheap! Duty ammo is Hornady Tap by the way, so at least they are not super cheap! Anyway, on about my 78th round I had my first malfunction. I squeezed the trigger and click, no boom. I saw that the bolt was not closed all of the way. I locked the bolt back, and saw that there was a round that slid forward to the barrel. This round was not fired. I had another round that was also in the chamber, but I think this happened when I locked my bolt back. Not sure why it happened, and thoughts? I cleared the rifle, and put the rounds back in the mag. Only 3 rounds left and they all fired.

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    Quote Originally Posted by madisonsfinest View Post
    I have a new LMT CQB MRP 16", and I just had my first malfunction. A couple weeks ago I was able to shoot 40 rounds of Remington Express Rifle 55gr 223 without a problem. I did not clean the rifle, and shot 40 more rounds today of my work practice ammo. This ammo is Lellier & Bellot FMJ/193 55gr. I see it is made in the Czech Republic. Never heard of this ammo before, but I wouldn't be surprised if it was really cheap! Duty ammo is Hornady Tap by the way, so at least they are not super cheap! Anyway, on about my 78th round I had my first malfunction. I squeezed the trigger and click, no boom. I saw that the bolt was not closed all of the way. I locked the bolt back, and saw that there was a round that slid forward to the barrel. This round was not fired. I had another round that was also in the chamber, but I think this happened when I locked my bolt back. Not sure why it happened, and thoughts? I cleared the rifle, and put the rounds back in the mag. Only 3 rounds left and they all fired.
    I think we've discovered the problem. Also, it basically sounds like a bad round.

  3. #3
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    You had a double feed. Was there a mark on the primer of the chambered round? Also did you use a known good mag?

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    Quote Originally Posted by fruitjacket View Post
    I think we've discovered the problem. Also, it basically sounds like a bad round.
    80 rounds out of a brand new rifle dosen't qualify as dirty.

  5. #5
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    Cleaning

    Do you really think it needs to be cleaned after 40 rounds? By the way I did clean it today afterwards.

  6. #6
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    It was an LMT mag, brand new with rifle. I did check to see if there was any type of strike mark on the cartridge, but did not see any

  7. #7
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    madison,

    Just an FYI. Sellier&Bellot is one of the oldest ammunition makers in Europe and possibly the world. As a matter of fact you will see it in many of the European gun stores and I shot thousands of rounds of it when I was in Europe. I also have S&B 55gr. ammunition in the states as well and it has always functioned in the weapons (including AR's) that I have fired it with.

    Though your description had me a little confused it sounds as if your bolt was not fully in battery and when you pulled the trigger nothing happened. You then created a secondary malfunction when locked the bolt to the rear because the first round wasn't extracted and then a second round was possibly fed?

    Remember that ALL AMMUNITION to include military NATO spec ammo can fail. I get daily notices from the ammo gurus at NAVAMMOLOGCEN in regards to ammo that is reclassified (good or bad) due to a variety of issues. This translates into hundreds of thousands and even millions of rounds from any particular lot. And no firing only 40 rounds shouldn't make a difference. A few months back I fired over 400 rounds through my carbine in less than 2 hours and all I did was lube it.

    A few more things;

    1. What type of mag was it?

    2. Do a visual and make sure that everything is as it should be.

    3. Procure at least two other types of ammo that is known in the circles to function well and try it out.
    Last edited by Iraqgunz; 03-10-09 at 06:45.



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  8. #8
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    IMHO you need to shoot it a hell of a lot more before getting concerned with a doublefeed at 78 rounds in.

    Get more magazines and get out and shoot it. See if the problem persists.

  9. #9
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    There is an issue if your gun will drop the hammer when not in battery. Just to be clear, was there a "click" or just a dead trigger?
    Jack Leuba
    Director, Military and Government Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  10. #10
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    I agree that the gun needs to be run a little more.

    It sounds to me like the magazine was a little late in presenting the round or the bolt is running too fast. I would try a different magazine the next time out, one with a stronger spring.
    "The sword is more important than the shield, and skill is more important than either. The final weapon is the brain. All else is supplemental." John Steinbeck

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