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I have 4 Augs and never had any issues even close to that? I am guessing It is mag related also as the Aug Platforms ar usually super solid. Mark mags and see if a certain mag is to blame and keep us posted if it is the gun I would contact steyr and they will make it right.
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Rounds popping out of mag causing double feed.
"But muh AUG mags so reliabuh!" |
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Do you have any Magpul AUG magazines to use as a comparison? They seem to retain the top round a little better.
Did you buy all your magazines at the same time? Maybe that day they were off at the factory. Steyr has been easy to deal with my AUG. Sorry to hear about your frustration with the platform. Someone who knows better than me could chime in. |
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Quoted:
Not to Hijack Lazy’s thread I decided to make a new one. I have an STG 77, it’s an awesome rife however I occasionally get double feeds every other range trips while using different ammo, and magazines. This has occurred on both gas settings. Some trips it will run 100% and others it will have hiccups. I do a full detail clean after every range trip and there is no noticeable broken parts. During the break in period It was common however after that was complete it ran well and no issue. Fast forward a couple hundred rounds It started occurring several times after using Winchester white box ammo which jammed the gun almost every Magazine. I used the remaining white box ammo this weekend in a full Auto AR15 and worked 100% so I’m not sure it’s the ammo. It recently occurred 2 weeks ago one time shooting with my dad, with federal ammo but 100% this weekend. Im taking it to a class this weekend so hopefully it runs without jamming on me It’s concerning as this is my primary home defense rifle and for a $2000 rifle, it shouldn’t be extremely finicky to work correctly. Lazy suggested it’s caused by bullets bouncing out of the magazine while firing, does anyone else experience this? Here’s the examples https://i.imgur.com/9jg8Do4.jpg https://i.imgur.com/UREvuDD.jpg https://i.imgur.com/ztOiBuy.jpg https://i.imgur.com/1WqiYuM.jpg View Quote More details will help. When the jam occurs, where in the mag cycle is it? Full (ish) mag with full spring tension? Near the end of the mag cycle (weak spring tension), etc? Pull apart your mag and clean it. Also, take some photos showing just exactly how you're putting the spring back in (orientation). AUG stocks have a cut in the bottom through which the mag passes. There is a rim in there that is probably by-design very close to the outside dimensions of a mag - and I suspect that helps keep the mag from swelling, and keeps it aligned. Take a close look at that rim, and see if it's sloppy (probably not that well explained). Also, load up a couple of the mags, and post photos from several angles of what one of your mags looks like while it's loaded. Is the nose of the 2nd round trying to sneak up and out? Try pushing forward the first round, how is the second round behaving. Unload your AUG, drop the bolt, flip it over. Look down the mag-well. See the bottom of the bolt carrier - is it smooth? How about the end of it, any burrs, or anything that might snag the rim of the top round while it's flying BACK in the cycle? How about the bolt, any burrs or anything funny on those bottom lugs that might also be contacting the rim of the top round on it's way back? Gas setting - it's on Normal of course? Take a photo of what that port hole looks like. Frankly I think AUG's are over-gassed. I don't suppose you have a bore-camera that can give an idea how if your gas port is oversized? Try a few shots with gas in Grenade Launcher mode (gas turned off), and manually cycle. Cycle it weak, cycle it hard. Everything OK? The trigger group locking pin. Are you sure it's installed right? Which is to say, you insert the trigger group (with gun held level so the bolt-lock is hanging correctly and works right), insert the rubber butt plate, push in the center of the butt plate to allow clearance of the pin and push the pin all the way through. Let everything go, then tug on the pin for 1/16" for it to snap into set. That's being done right? Post a photo on both sides of the pin, showing how much is sticking out. Bolt-carrier group - what does it hit at the end of its stroke? How does that impact zone look? Also, do you have the little roller doo-dad on top of your bolt carrier still? Detailed cleaning every range outing: So stop. If it's super clean and well lubbed, bolt carrier velocity is going to be maximal, on a gun that's already over-gassed. Let it get dirty, let the rings coke up. Keep it lightly (lightly) lubed; an AUG can go a long time between cleaning. Maybe this has nothing to do with it, but something to try. All that said, my top suspect is still the mags - so be sure to post those detailed mag photos first chance you get sir. |
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Quoted:
Not to Hijack Lazy’s thread I decided to make a new one. I have an STG 77, it’s an awesome rife however I occasionally get double feeds every other range trips while using different ammo, and magazines. This has occurred on both gas settings. Some trips it will run 100% and others it will have hiccups. I do a full detail clean after every range trip and there is no noticeable broken parts. During the break in period It was common however after that was complete it ran well and no issue. Fast forward a couple hundred rounds It started occurring several times after using Winchester white box ammo which jammed the gun almost every Magazine. I used the remaining white box ammo this weekend in a full Auto AR15 and worked 100% so I’m not sure it’s the ammo. It recently occurred 2 weeks ago one time shooting with my dad, with federal ammo but 100% this weekend. Im taking it to a class this weekend so hopefully it runs without jamming on me It’s concerning as this is my primary home defense rifle and for a $2000 rifle, it shouldn’t be extremely finicky to work correctly. Lazy suggested it’s caused by bullets bouncing out of the magazine while firing, does anyone else experience this? Here’s the examples https://i.imgur.com/9jg8Do4.jpg https://i.imgur.com/UREvuDD.jpg https://i.imgur.com/ztOiBuy.jpg https://i.imgur.com/1WqiYuM.jpg View Quote |
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I’ll post detailed photos tonight, on Sunday I’m going to Florida Firearm Training Advanced Rifle class. It requires 500 rounds, I’ll take note if any of the magazines has issues and mark them for further inspection. I have a spare parts kit so I can replace any minor parts of required
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Do your mags have a clear square around the round count numbers?
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My NATO aug had bad double feeds but it was new.
Haven't tried it since |
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Do the double feeds happen on the 1st rounds, middle of the mag, end of the mag?
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Quoted:
I tried to replicate the double feed theory that you mentioned and couldn’t get the bolt to come close to pick up the second round or popping one of the rounds in the Magazine while inserted, I’ll try it will all magazines tonight https://i.imgur.com/aYxQlvu.jpg View Quote I need to go check again tonight - because you're right, it does seem unlikely that the second round was raised far enough from cam'ing the mag, to engage the bolt. That's a long way to raise that second round up. Yet, somehow, it did try to double-feed when I pulled and held the mag back. It might just be the angle is causing the casings to drag against each enough enough that the 2nd one wants to carry forward with the first one. I'm going to try again tonight and look further into the behavior. |
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Touche' (F' you, but Touch'e ; I LOL'd ) View Quote View All Quotes View All Quotes Quoted:
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Rounds popping out of mag causing double feed. "But muh AUG mags so reliabuh!" When I point that out here the pitchforks always come out but it is what it is. I've seen this happen with AR-15s too but only with shitty Orlite mags. |
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I tried to replicate the double feed theory that you mentioned and couldn't get the bolt to come close to pick up the second round or popping one of the rounds in the Magazine while inserted, I'll try it will all magazines tonight https://i.imgur.com/aYxQlvu.jpg View Quote It isn't going to happen when you are cycling it by hand, that's a waste of time. Set up a camera on a tripod looking into the ejection port with good lighting and film it while you shoot. You will see what I am talking about if you have a camera that shoots 60 frames per second or more. |
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I bought the Corvus Enhanced Magazine release, hopefully that better holds the magazine and prevents the round popping
How long is shipping from Corvus? |
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OK, I am drawn in. From the beginning of this thread, my money was on gas. I may be dead wrong, but I bet there's nothing wrong with those mags.
Different ammo, different magazines, same problem. The constant is the gun itself, and it has always done this. Has anyone ever heard of another AUG doing this? Both of the rounds may be spit out, not pushed out. The top round in the double feed is resting pretty high on the bolt. Lazy asked about the gas settings. Is it on normal? 1st vote: Gas 2nd vote: Out of spec stock |
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OK, I am drawn in. From the beginning of this thread, my money was on gas. I may be dead wrong, but I bet there's nothing wrong with those mags. Different ammo, different magazines, same problem. The constant is the gun itself, and it has always done this. Has anyone ever heard of another AUG doing this? Both of the rounds may be spit out, not pushed out. The top round in the double feed is resting pretty high on the bolt. Lazy asked about the gas settings. Is it on normal? 1st vote: Gas 2nd vote: Out of spec stock View Quote |
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Hhmm....
The stock assembly is welded together down the center during manufacturing, IIRC. Perhaps the stock is out of tolerance just enough to allow the magazine to misfeed. |
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Quit burning up ammo and send it in to Steyr, let them fix their mistakes.
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Jonathan, read the bottom of Lazy's thread, page four.
Tomorrow, unless it snows, I'm going to the range with ~60 rounds of green tip ammo and a domestically made AUG mag, an Austrian AUG mag and a magpul mag so I can reenact mcantu's idea about mags and ammo causing this issue. I spoke with a buddy tonight who had this same double feed with green tip ammo in my rifle. The unknown is what mags were used. I'll post in lazy's thread next. I only shoot handloads so this is disturbing to me. |
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I wouldn't be all that satisfied with the "have you unplugged it and plugged it back in?" reply from Steyr.
A question for my own knowledge: What specific problem does a new AUG have due to stiff new springs? Is it some kind of short cycling which turning up the gas overcomes until things work in? This rifle looks as if it's pretty far from short cycling. |
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If I were closer to OP I'd help him out via process of elimination. I'd start with magazines, then swap the stock with a known good stock. If that didn't change anything then I'd look at swapping barrels next. If it's the barrel then I'd swap gas system parts. The last thing I'd swap would be the carrier, which I would highly doubt to have an issue.
My money is on mags or a stock that isn't quite right. |
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I wouldn't be all that satisfied with the "have you unplugged it and plugged it back in?" reply from Steyr. A question for my own knowledge: What specific problem does a new AUG have due to stiff new springs? Is it some kind of short cycling which turning up the gas overcomes until things work in? This rifle looks as if it's pretty far from short cycling. View Quote Some new AUG's experience cycling issues with commercial ammo because recoil springs and hammer springs are very heavy. I've always had good luck with breaking an AUG in on 5.56, not off the shelf .223. Even then, I have some AUG's that eat weak .223 Russian crap all day long. |
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Jonathan, read the bottom of Lazy's thread, page four. Tomorrow, unless it snows, I'm going to the range with ~60 rounds of green tip ammo and a domestically made AUG mag, an Austrian AUG mag and a magpul mag so I can reenact mcantu's idea about mags and ammo causing this issue. I spoke with a buddy tonight who had this same double feed with green tip ammo in my rifle. The unknown is what mags were used. I'll post in lazy's thread next. I only shoot handloads so this is disturbing to me. View Quote |
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Quoted:
https://i.imgur.com/yKBcJuB.png https://i.imgur.com/knGNB5K.png https://i.imgur.com/5kNfSZJ.png This is what Steyr has to say regarding the issue. I’ll follow what they recommend but 1000 rounds to break in a rifle seems excessive but they are the experts View Quote |
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You don't get double feeds from an undergassed rifle, that isn't the problem here.
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That was a bizarre response from Steyr.
Are they saying we should be storing new AUG's with the bolt locked back to break in the recoil springs? |
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Looks like failure-to-eject aka short-stroke (unless OP confirms both rounds in this pic are live).
Most folks incorrectly called that a "double feed" when bringing one in for gunsmithing. Steyr facebook advice wasn't too bad (other than the 1,000+ round break in lol). Remove the gas piston and clean everything there, including the gas port (use pipe cleaner). Switch to adverse. If that doesn't do it, lock the bolt back using the notch in the receiver and let it sit a couple weeks, then try again. Winchester white box is notoriously weak and sometimes inconsistent. You may have to use ammo closer to 5.56 NATO strength until it's broken in thoroughly. |
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Quoted:
Looks like failure-to-eject aka short-stroke (unless OP confirms both rounds in this pic are live). Most folks incorrectly called that a "double feed" when bringing one in for gunsmithing. Steyr facebook advice wasn't too bad (other than the 1,000+ round break in lol). Remove the gas piston and clean everything there, including the gas port (use pipe cleaner). Switch to adverse. If that doesn't do it, lock the bolt back using the notch in the receiver and let it sit a couple weeks, then try again. View Quote |
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I have had a double feed happen to me once. I attribute it to shooting weak-hand (righty for me) and having the brass hit me in the face, and fall back into the ejection port, then when I tried to clear the brass from the port, it ended up double-feeding. Not the guns fault, but damn it cost me a lot of time to clear that shit (was during a friendly match).
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If that's the case, then I suspect the stock wasn't made properly and something is at the wrong height. View Quote View All Quotes View All Quotes |
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That was a bizarre response from Steyr. Are they saying we should be storing new AUG's with the bolt locked back to break in the recoil springs? View Quote OP, try keeping the bolt locked back until you go shooting next |
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Just a note all magazines were purchased from 44mag website minus the green magazine
The rounds in the the malfunction are both live rounds so the rifle is not short stroking like it did in the break in period. The malfunction occurred in the middle or beginning of the magazine from what I can recall. Is the magazine supposed to have any play or wobble side to side or back to front? How long is Steyr turn around time? I’d hate to have to wait for a couple months to get my rifle back. How is their customer service? Thank you |
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I have a new AUG that's only been fired ~300 times. Should I leave it with the bolt locked open? View Quote View All Quotes View All Quotes Quoted:
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That's also one of the steps to follow when replacing the recoil springs. They are that fucking strong OP, try keeping the bolt locked back until you go shooting next Frankly, you shouldn't have to "break" it in at all. CZ uses (or used to use) a washing machine looking rig that they would put new production CZ-75's into. They would spray oil in the rig, and it would spin around manually cycling and dry-firing the 20 or so pistols loaded into a few hundred times or so, to break them in for you. If the AUG is really this sensitive to break-in (which I don't think it actually is); Steyr should be doing that. |
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Just a note all magazines were purchased from 44mag website minus the green magazine The rounds in the the malfunction are both live rounds so the rifle is not short stroking like it did in the break in period. The malfunction occurred in the middle or beginning of the magazine from what I can recall. Is the magazine supposed to have any play or wobble side to side or back to front? How long is Steyr turn around time? I’d hate to have to wait for a couple months to get my rifle back. How is their customer service? Thank you View Quote As to play and wobble, obviously there will be some, but in mine, it's kinda minimal. I'm about to take my AUG to the range today, and plan on holding the magazine back, to see if I can replicate it. No green-tip this time though... |
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It makes zero sense that a "slow bolt carrier" would ever pick up 2 live rounds.
Either the rounds are popping out of the magazine or the magazine is sitting too high in the rifle causing the bolt to hit 2 rounds at a time. Looks like in your case, the magazine is sitting too high. |
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It makes zero sense that a "slow bolt carrier" would ever pick up 2 live rounds. Either the rounds are popping out of the magazine or the magazine is sitting too high in the rifle causing the bolt to hit 2 rounds at a time. Looks like in your case, the magazine is sitting too high. View Quote |
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