User Panel
Posted: 9/2/2008 3:59:47 PM EDT
it will cause major leakage in your expansion chamber, WTF. I just looked at mine while cleaning my coltbolt and they were all aligned,
they were also loose fitting on the bolt which I havent noticed before. I am pretty sure they are supposed to be loose but what about alignment? |
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Gas ring alignment is a myth. The rifle will function with only one gas ring.
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Most Carbines will do it with no gas rings |
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+1
You could probably wrap a dead earthworm around the bolt groove, and it would still work.... Well, maybe not. But no, it doesn't matter if the grooves align. It'll work with one gas ring as Bradd mentioned. They're not "loose" per se. They squeeze down when inserted into the BCG, and the gap closes up for the most part. That's how it's designed to operate. |
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so basically on my 6920 its a non issue? what about the looseness of the rings, normal? |
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thanks ill send range report. |
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No dont! |
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Not to mention the bolt rotates as it moves in and out of the carrier. There is no way the rings are going to stay in the same spot in relation to each other. If you spaced the gaps evenly before shooting(or even hand cycling) they will not be that way when you pull the bolt out. Well, maybe by chance. |
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I don't bother with it anymore and I can't tell the difference.
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The manuals state to ensure the gas rings are not aligned during assembly. I do this out of habit. But think about it, during firing the rings are constantly rotating around the bolt, and are never in the same position they were in before firing.
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nothing.. I took all off but one and tried it just to see, nit worked fine. even with wolf. I did it on a 6920 and a MT6700
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The three ring design is for redundancy and sealing, no different than a combustion engine piston. It might work fine with one ring, but naturally three is better than one for reliability.
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I do this too, even though they are never in the same position when you pull the bolt out the next time. I always put the gaps 180 degrees from each other. |
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i know, i just wanted to see for myself. Everything you read says to do it or your gun will have no chance of working, blow up, short stroke etc. I like to know myself, know what I mean? |
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You need to get one of those fancy McFarland one-piece gas rings.
-Frank |
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Don't even ask what happens if this coincides with planetary alignment.................
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Colt armorer class said:
1) You do not have to stagger the ring gaps. 2) If it makes you feel better to stagger the ring gaps, just do it. This is one of those issues that people will fight all day long. Do what floats your boat. Me, I don't line up the gaps, but I do check that the rings are not worn |
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I know it's a myth...but at CATM before I deployed we were told if they aligned the gas seal became a gas port, and our M-16 would possibly malfunction. Just the oh so fun military(well AF) spreading nasty rumors.
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If you can't remember then don't freakin' reply. Especially since it's pure bullcrap that they have to be aligned for the rifle to work even though the manuals say to ensure they are not aligned. Pure stupidity to be spreading false information on a "can't remember". It will work with only one ring just fine but has three for redundancy. If it can function on one by itself how the hell is the rifle going to short stroke with three just because they are aligned? This board is getting polluted with idiots spewing bad information like vomit. I really feel for the new guys that are really looking to learn something and come across the plethora of bullshit that has become rampant here. |
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Monkey302
There wrong, and perpetuating a myth. Gas rings work .like gas rings. When the bolt is assembled inside the Carrier, the rings squeeze closed, just like on a car piston. no leakage... No need to align them. |
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The rifle will cycle just fine with the rings aligned.
Your long range accuracy will go to hell though. The CWO4 that ran range at Puuloa in Ewa Beach and the coaching school told us that aligned rings were bad for accuracy. He told us it caused very small inconsistencies in the way the bolt returned into battery which in turn throws off your accurracy. At close ranges below 200 yards you will not be able to tell. As the distance increases so does the effect. Your groups will scatter with no apparent pattern. I saw it happen several times as a rifle coach in the Marines and it happened to me one qual day on the 500 yard line. The 1st 6 rounds went into the black just fine the last 4 went all over the damn place. I would speculate that in most civy rifle that have a very low round count and nice new rings would not be affected nearly as much as the old worn out M-16A2s we had. As the rings wear they would have a lot less tension which makes the gap larger. New rings are going to have more tension and close up the gap a lot more when you put the bolt into the carrier. YMMV and I fully expect some mall ninja peckerwood to flame away saying I'm full of it and that the PMI's and the CWO that trained me are full of crap. Yeahhh Right. Just remember they've only seen hundreds of thousands and in the CWO's case probably millions of rounds go down range. I've seen and shot a few rounds too. |
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Regarding the above.
Would the single piece ring solve the loss of accuracy problem or is the chance of the three rings aligning perfectly not so great as to worry. sw1217 |
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How would one go about proving it was the gas rings that caused the accuracy loss? |
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Accuracy loss?
WTF? Back when the rifle was NEW and the TM was being written, the powder used was a single-base extruded. Port pressure was about 12,000 PSI. The switch to spherical Olin propellent somewhat later increased port pressure to about 15,000 PSI. The manual was now GOSPEL. Now with the M4, port pressure is around 20,000 PSI. And the manual? STILL GOSPEL. Go back to the M16, find some old ammunition that was made with the old IMR powder and get it dirty. Align the rings and you MIGHT have a few failures out of 1000 rounds. But using M855 in an M4? It ain't under-gassed. |
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So if my rings go to sh---- and have to be removed the gun if carm4 will still shoot just fine This is for jbow. And if so why do we need them
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Hey now! There isn’t room for the two of us on this soap box! |
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New guy here and would like my to know if the gun will work with out gass rings
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it's a complete myth. makes no difference at all.
it took me YEARS to get over that as it was constantly drilled into my head on a daily basis in the army. I am still a "recovering" soldier for the BS that the military teaches about these guns. seems like everyday i find something else "busted" they used to teach as gospel. |
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Someone should start a "MythBusters" thread.
....but then "the chart" may get beat to hell. |
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becuase it's been "taught " that way for years. The .mil instructors were taught by the last guy that taught them wrong and by the time it gets down to the platoon level the NON ARMORER instructors spew all the garbage they were given as gospel. last year i had 2<yes 2> rings break during a course of fire. i did not have a spare bolt with me. i found it during a break when i was giving the gun a quick clean and pulled out the peices of the broken rings. ran the rest of the course just fine on one ring until i got home to replace them. Obviously NOT ideal but it was more than sufficient to function the gun. my understanding is the rings not only are a gas seal but also help stabilise the bolt in it's rearward movement. 3 rings give more surface area for stability in that regard but a seal is a seal. if it's intact it doesn't matter if you have 12 rings or 1. keep in mind these are military rifles, if you have one ring and it fails you may or may not have a function gun. if you have 3 rings and 2 fail, your still in the fight. as for the accuracy issue, i honestly have no idea, but i can see how the guys trying to sqeeze every mincron out of a shot could be affected by eneven tension on the rings. For the record, it's not a "BAD" idea and atleast will ensure that the guy cleaning the gun will actually inspect the rings. the point is it's simply not "needed" for proper function of the action. |
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keep in mind EVERY time that bolt cycles those rings turn in the groove. odds are good at some point during a session you will ALWAYS end up with them aligned for atleast one shot . thus it really makes no difference at all. the second shot would have them out of alignment. |
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I didn't feel the need to post a manual excerpt. We all know what the manual states. As far as practicing what I preach? My personal feelings on gas ring alignment are posted on page one. |
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there is a single peice ring out there. from what i have seen and heard they really don't make much difference either way. |
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The_Beer_Slayer
And that, in a nut shell, is why. Some of the stupidest Sh*% I have ever heard, came form the .Mil And I'll tell you my dirty little secret... back around 2002, I was running a Qual range and one of the shooters was having malfuctions, Like the good NCO that I Am, I had him pull his bolt out and I noticed the Gas rings were aligned. I told him to stagger them, lube the bolt and try again...Violla, his problem was solved. SO I walk away feeling like the Subject matter Expert I thougth I was.. In retrospect, those gas rings did diddly... It was the lack of lube and the shiity issued magazines that was the problem.. Now because I was indoctrinated and followed the TM, that was the best info I had at that time. I now know better. It's called evolution.... some fight it, others embrace it. You have to decide which side your on.... and as to the accurracy falling off when the rings align, I think that is a Total BS myth. |
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I will flame away. I went through Range Coach School and PMI school in Hawaii also and did it for quite a while. I have NEVER seen this as an issue. Also, I am holding my books and my notes from the school in my hand right now and there is no mention of any of that in them either. I am not saying that you were not told that, but that does not make it true. |
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This is what I heard in regards to accuracy. Someone here posted that they were a high power match 1000 yard shooter and noticed his group would open up if the rings became aligned. Makes some sense that match shooting at very long ranges requires absolute constancy. So a few FPS difference at such a long range might make a difference. Whether seepage in the gas rings will cause that I don't know. Then another poster below him mentioned something about the superstitious nature of match shooters. Well, that makes more sense. If you are getting ready to take a shot and just realized you didn't do something in your routine, well you just took your mind off the task at hand. Who knows |
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