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I've used American Eagle 855 rounds without a doublefeed. I switched over to PMC 109s and it happened consistently. All were PMAGs. The rifle was clean and lubed. I added a strike industries adjustable buffer and added an extra tungsten weight over stock. Problem solved. It was overgassed.
I have stacks on stacks of GI mags and 10 PMAGs. The only reason I ‘like’ the plastic ones is with the stowage/dust cover clip on top I don’t feel *as bad* leaving them at the correct load-age, 28 rounds. (I also got bored and stippled every dang square) Can confirm most stoppages are from dirty mags, or if you bend the feed lips. When I was at Ft Benning as a Small Arms Instructor there was talk about making a go/no-go gauge for mag tops. Not sure if it went anywhere (lowkey I think it’s a dumb idea considering how cheap mags are). It’s easy enough to get dummy rounds and check if they’re serviceable by cycle testing them. Know thy equipment!
I personally have always dropped the mag and the. Locked the bolt back when fixing any malfunction and visually inspecting that the weapon is clear then inserting mag and releasing the bolt and back to business. Love Pmags and regular metal mags too but mainly just run Pmags. Great video and I’m not jealous at all over the full auto😂😂👍👍👍
Delton was my first AR back about 15 years ago I own 3 now thousands of rounds later Never a single issue with any of them great rifles and a great company. Very interesting video and what looked like a lot of work
Interesting. I have a couple pmags. They feel wrong... I don't like them. I have a couple sure feeds that I love and a few salty ass colt mags that I put magpul followers in with cmmg braided springs. Pmags feel cheap, and this video just slightly confirms my bias.
I just bought a M&P 15 and I was running test through it and had the same problem. At first, I thought it was an issue with the rifle, but after double and triple checking, I realized it was the mag. PMag to be exact.
I like the Lancer so far. Albeit, I have only run less than 1000 rounds through them, but I've had no problems double feeding brass case, even with 30 loaded. Maybe I'll try the simulated double feed and see if it's really that bad.
@@VSO_Gun_Channel I just went and shook all 6 of my lancer mags with 30 in each, not one round bounced out. Your 28 round nonsense probably lets the spring contract too much causing enough extra pressure to push them out. Try to load 30 and do it.
I'm a sub... What about " The Death Jam ". An empty case goes up above the gas tube, bolt starts to feed another round jamming the the carrier group so won't go forward or backward. I had this happen to me last summer. I was letting my wife shoot, I didn't see it happen. Never seen it happen. How do you take care of it? The RSO told me it was " A Death Jam " because if it happens to you at the wrong time you dead. You obviously cannot disassemble the rifle. The bolt carrier group is stuck solid, half in stock tube other half trying to go into battery. I dropped the mag. I needed a long screwdriver and a lot of working with the charging handle to try to get the casing to move just far enough so that I could get the bolt carrier group to retract enough to open the rifle. I spent considerably time ( approx 45 min.) with the screwdriver trying to get the case that was above the gas tube. Surprisingly the gas tube did not get damaged. Especially after the beating it took. Please help me with this. I guess that's what a backup gun ( pistol ) cause your **ucked.
Drop your mag. Use a round or the screw driver, place it in front of the bolt and push (edit: or pull) it backwards and the bolt carrier group will slide back and the stuck rd will drop out. Semper Fi
Now how about that. Jerry mentioned about an empty bounces of a barrier or something and goes back into the action. I had my wife shooting next to a box with a net in it to catch the empties because I reload. You guys are the best. Now I know why it happened.
That subtle example of , Do not support people that do not support the 2nd amendment- , was great. I already went through my stuff. Why 28 and not 29 ? I know why 30 can be troublesome but ive never heard 28 before....anyway , thanks
The loading issue and material deformation isn’t linear. In theory you reduce the ‘wear’ on the spring and mag body over time. I am in no way capable of substantiating that claim fyi but I can say in my experience 28 is the ticket.
28 rounds is not the proper denomination for AR mags, regardless of what fudd-lore you hear from former special operators. Modern magazines have extra spring distance at the bottom to allow them to properly seat even when loaded "to capacity" with 30 rounds. I almost guarantee everyone from your class who was having feeding issues were using magazines either with the old, "milspec" springs (which never fed properly) or didn't have anti-tilt followers (the tan/orange followers in newer "USGI" style mags); or possibly a combination of both. TLDR: run 30 rounds in your magazines, only buy newer production magazines with proper springs, and if all else fails hit it a bit harder and seat it properly.
I noticed magpul in particular have extra room to accommodate that. Some of the off brands are not real generous and you gotta give them an extra shove to seat with the bolt closed
Every time I do, my range buddies keep gently putting in the mags and letting them fall to the ground because they weren't fully seated. It happens way too often
I use PMags mostly for 5.56 ARs, but have a number of Surefire aluminum mags which have never let me down yet. For my 7.62 AR it’s CPD or Duramags only. For 7.62 AKs it’s steel mags only…and I prefer the Zastava mags. I’ve tried other AK mags with mixed results.
Kurt, have you already made a video explaining that magazine test you do with smacking the magazine base? If not, would you consider doing a video on that?
Hey I just bought that exact model for my first AR abt 3 or 4 weeks ago. I like it so far. I'm looking at a vortex crossfire 2 to go on it. It's primary roll is going to be a walking the fence line gun.
So, what I'm seeing is 2 FULL rounds double feeding. The only time I've seen a double feed was the empty case didn't eject fully, got caught in the chamber the same time the new round was going in
Check out Mtn Ops. I know they support hunting and conservation. I also know that not all hunters are Pro 2A... may need to chat with them and possibly become an affiliate
I've never understood the need to down load to 28 rds besides the fact that it's easier to seat when doing a tac reload, I always load mine to 30 and just seat hard then give a tiny pull, is there another reason to load to 28?
I have many ar15s and even carried an 16A4 in Iraq as an Infantryman and have always on some rifles had failure to feed or failure for bolt to seet all the way back into battery double feeds ect. But have never had any of those issues with my AKs one being a Zastava M70. And a polish and a Romanian I love the AR platform but this troubles me.
How about a video on clearing a bolt override malfunction in battlefield conditions? Or in not battlefield conditions even? Good news you’ll need a Leatherman MUT tool! 👍🏻
Man my new ar I got kept doing something like you first showed. It would shoot wouldnt eject the shell and throw a new one in it and jam and smash the cases. Not exactly sure why it was doing that
Was at the range last week when a guy had a malfunction I'd never seen in person. A spent case somehow binded near the extractor then seized up on the bolt face on an angle that would not allow bolt to go back into battery for disassembly. Couldn't even rip the case free with pliers through the ejection port or magwell. I had to take a G.I. steel cleaning rod (regular brass rods were too large) , feed it down the barrel and into the cartridge then slingshot the charging handle while maintaining pressure on the rod to get the case far enough into chamber to pop the rear pin & remove the BCG. The extractor + ejector were both fine & there was no visible explanation for what happened or why & it continued to run fine for the rest of the day. Has anyone else had this happen & does anyone know what could've caused it? The primer wasn't flat so I don't think it was a pressure issue but aside from that I'm clueless...
@@ChrisLoew it was brass case Winchester (lake city brass) frangible 5.56, the white box / brown box stuff the military uses. I can't remember the designation, M something... No lacquer on the case, bolt was clean and casewas only damaged on the "rim" where extractor meets bottom lug, like it got pinched somehow. They thorpughly inspect all ammo that comes in & they don't skimp, they want to open everything, including sealed boxes, so I know the R.O. would've caught anything out of the ordinary & even he was puzzled on how to remedy the malfunction. Maybe I should've asked for an application after I fixed it? 😅
I use " STEEL " Mags. only, not Aluminium or Plastic. DURAMAG FOR ME, THANKS BIG GUY, GREAT VID. & I SEE YOUR HAND IS MUCH BETTER. Also I'm just a regular Joe but I like my shit too work.
Yes, the magazine absolutely does matter. I only run Lancer magazines because of this. Not saying it couldn't happen but these magazines are the least likely to do it with.
I want you to look again closely. The first round ejects correctly, the pattern then shifts forward as it works through the first mag and stays there. This is a known phenomenon. I’m not sure anyone has pinned down a root cause. At first, I thought it was a heat thing, but this will never happen on any gun that isn’t auto. I’ve only ever seen it happen on DI guns. So this leads me to believe there is some kind of gas tube thing going on. I have a video somewhere of me standing in a pattern to show scale.
So! Old video, so I hope for a response, I have a 10.5” upper that seems to be double feeding. *Standard carbine buffer and spring* I thought it was due to magpul mags, so I tried others. Still seems to do it. It becomes somewhat less likely to happen as there is much less tension on the mags 12-15 rounds or less in standard capacity mag. Could this be a bolt speed issue? Severe over gassing? I’ve had this upper for over 10 years. Don’t recall having any issues prior.
Pull out your smart phone and set it to 240 fps recording slowmo. Play it back, if you can see the bolt to any degree of resolution you aren’t overgassed. If it looks like a blurry mess, you are too fast and need to tone it down
Just found this channel, I'm wondering how you obtained this full-auto AR-15? My guess would be you are an FFL? Forgive the ignorance of you personally or the channel. I'm simply jealous of you and our infringed freedoms.
Another jamb feed with a PMAG video, didn't you buy some good metal magazines? I've never had any issue with clean metal mag's. Those plastic mags are all crap IMHO and not worth your life maybe in a fire fight, plastic mags I guess maybe for target practice mag's. You've got an insufficient gas block on that barrel if that happened during operation.
