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Thread: M16 Clinic upper KABOOM (very pic heavy)

  1. #11
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    Quote Originally Posted by Razorhunter View Post
    What exactly do you guys mean by "squib" ?
    I am probably wrong here, but I thought "squib" meant underpowered round went off, possibly leaving a bullet in the bbl, thus obstructing the bbl.
    I've probably experienced, or been in the presence of just about every type of malfunction you could imagine, but I'm not always up to par on the lingo/terms used for each type.
    Is this not right?
    Thanks.
    You are right that is what a Squib is but if you have a round stuck in the barrel and you fire another right after that then the gas pressure has nowhere to go but back the way it came so it will blow back into the upper and make it go Kaboom

  2. #12
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    The more we toss this around and with more information I have now, it's the lack of crimping the rounds that caused bullet setback which led to over-pressure and kaboom. Initial malfunction was unrelated.

  3. #13
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    Quote Originally Posted by rickp View Post
    I'm honored to have made history for the club.

    I'm having a smith inspect the barrel today, so hopefully he'll be able to shed some light on what really happend.

    I'm not completely convinced it was a traditional squib load. I dont' remember getting any kind of indication of it being a bad round except the typical "click" instead of a "bang" before running the bolt to extract the failure to fire case.

    R.


    Glad you weren't hurt.

    After having several firearms KB on me, and watching several others.....I've become an eye pro Nazi.

    Let us know how things shake out.
    Employee of colonialshooting.com

  4. #14
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    TSSA is Serious Business.

    Was this Saturday's match?

    Edit: Oh wow, I was gonna say it looked like Rick's gun.
    Last edited by krytos; 02-02-10 at 16:22.

  5. #15
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    Quote Originally Posted by krytos View Post
    Was this Saturday's match?
    No, last Tuesday.

    coming to drills?

  6. #16
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    No but my prostate buddy is .

    Be sure to give him some crap, he has a bunch of gear he hasn't squared away yet.

    The LSAT is running my life, after Feb 6th I'm done with this wretched test and I'll be back.

  7. #17
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    Quote Originally Posted by rob_s View Post
    This happened at night, under range lights. It was not immediately discerned that the gun was FUBAR and the shooter was initially trying to "stay in the fight" and finish the stage.

    I see.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

  8. #18
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    Quote Originally Posted by rob_s View Post

    How do you arrive at what "should" have been done?

    I would not mortar a gun unless my life was at stake.

    I've seen a number of people do this and ruin parts of their gun.

    I have seen one incident where a piece of gravel got jammed in between the carrier and inside of the upper and mortaring it caused a huge ass gouge along the sides of these two parts and the mortaring didn't solve the problem.
    Last edited by scottryan; 02-02-10 at 16:36.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

  9. #19
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    Quote Originally Posted by Zombie_Hunter View Post
    You are right that is what a Squib is but if you have a round stuck in the barrel and you fire another right after that then the gas pressure has nowhere to go but back the way it came so it will blow back into the upper and make it go Kaboom
    Gotcha, and agreed, thanks.

    I'm curious to know exactly what winds up being the issue as well.

    Even if this truly winds up being an improperly crimped round, which caused bullet setback, I'd still like to ask if anyone here has ever felt like a progressive, or multi stage reloading press is a good idea to use?
    I mean, I've just always felt like the Dillon 550 my brother and I own, is somewhat of an accident waiting to happen, despite the care and utmost of attention to detail we put into reloading rounds.
    I've experienced a few of "weak" .45ACP rounds over the years, which we reloaded on the Dillon 550, but never have we experienced a squib, or any failure of the bullet to leave the bbl.
    However, I have always worried that the wrong amount of powder could eventually be put into one of our rounds, which could equal devastating results, especially if it were to be a DOUBLE powder charge, due to some kind of possible malfunction with the Dillon 550 press.
    I just don't trust those things, especially when doing many hundreds/thousands of rounds on such a progressive/multi stage press.
    Keeping an eye on crimping and setback, or overall length of the round is one thing, but trying to keep an eye on how much powder is put into each shell casing is much more difficult, if not virtually impossible on such a reloading press.
    I've just never felt comfortable shooting reloads done on a progressive press.
    About the only reload I would trust enough to be really comfortable, would be rounds reloaded on a SINGLE stage press, done by myself, and myself only. IOW's, I have never trusted reloaded ammo from such companies as GA Arms/etc.
    I've had several "mini-KABOOMS" with GA ARMS/etc ammo. Of course, I'm not telling you guys anything you don't already know in regards to reloads. You've all heard of many such happenings with the reloaded ammo, I'm sure.
    "ROLL RIGHT SNIPER!"

  10. #20
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    Quote Originally Posted by Razorhunter View Post
    Gotcha, and agreed, thanks.

    I'm curious to know exactly what winds up being the issue as well.

    Even if this truly winds up being an improperly crimped round, which caused bullet setback, I'd still like to ask if anyone here has ever felt like a progressive, or multi stage reloading press is a good idea to use?
    I mean, I've just always felt like the Dillon 550 my brother and I own, is somewhat of an accident waiting to happen, despite the care and utmost of attention to detail we put into reloading rounds.
    I've experienced a few of "weak" .45ACP rounds over the years, which we reloaded on the Dillon 550, but never have we experienced a squib, or any failure of the bullet to leave the bbl.
    However, I have always worried that the wrong amount of powder could eventually be put into one of our rounds, which could equal devastating results, especially if it were to be a DOUBLE powder charge, due to some kind of possible malfunction with the Dillon 550 press.
    I just don't trust those things, especially when doing many hundreds/thousands of rounds on such a progressive/multi stage press.
    Keeping an eye on crimping and setback, or overall length of the round is one thing, but trying to keep an eye on how much powder is put into each shell casing is much more difficult, if not virtually impossible on such a reloading press.
    I've just never felt comfortable shooting reloads done on a progressive press.
    About the only reload I would trust enough to be really comfortable, would be rounds reloaded on a SINGLE stage press, done by myself, and myself only. IOW's, I have never trusted reloaded ammo from such companies as GA Arms/etc.
    I've had several "mini-KABOOMS" with GA ARMS/etc ammo. Of course, I'm not telling you guys anything you don't already know in regards to reloads. You've all heard of many such happenings with the reloaded ammo, I'm sure.
    I reload my 223/556 on a 650 and a 1050 and used a 550 previously. I have no hesitation at all to shoot them (shot a lot of them last year at a class in fact). Just pay attention to what you are doing and do look into the case. Most 223 loads come close to filling the case and you can actually see powder at most levels of 223 loads looking into the case. Just use an overhead light. You CANNOT double charge a 223/556 case on a 550. You would spill powder everywhere. As I said, most loads come close to filling the case body (not including the portion where the bullet is) and a double charge won't physically fit. If you use the wrong powder (like a pistol powder) you could have extreme over pressure, and you can have over pressure if you have set back, but a grain or two plus or minus won't cause extreme overpressure.

    Make sure you crimp correctly.

    And watch what you are doing and be careful. Don't watch TV, or do other things while reloading and take as much time as you need to. Don't rush it.

    You are more likely to get a double charge in handgun rounds, especially 45acp, 38 and 357, etc which are large volume cases and where you use relatively low volumes of powder. Using the load I shoot in 9mm I cannot double charge that either as the powder more than 1/2 fills the case before I place the bullet in.
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