Is that Tulammo? If so i think that is your problem. Compare the primer of the one that got stuck to another that didn't and i bet it is pushed out further than the one that didn't. As with the other thread with the case ripping i think that the tulammo just has poor Q.C. and you got a "hot round". I have fired 2000+ Herters steel ammo out of my AR with NOT ONE issue! But with the tulammo i have had a lot!

 

tula yes im glad to hear its not all steel this is the only steel case i have used and i just dont think its worth it either....just my take on it though

 

For me when i plan on playing ie: full auto i want Cheap and i guess it is true you pay for what you get! But when i go for accuracy i step it up to better quality.

 

For just going out to the range I shoot Wolf steel. 500+ rounds of this stuff through my AR and not the first malfunction. I will say it takes a little more elbow grease to clean than the brass I shoot.

 

I ran 600 rounds of wolf thru my PWS MK114 last week, in about 1 hour,no issues. I just wanted to run it hard to see how it held up to dirty wolf ammo. it ran beautifully, and i took the bcg out at the range, and could barely get any black residue off it. I've shot a lot of steel wolf thru my Larue as well. no issues. yes its dirtier, but my philosophy is that if I own a gun that cant run anything, its not a gun worth owning.

 

It sounds more likely that you have a tightly cut chamber. Steel causes malfunctions in extraction because it does not expand on firing like brass does. This allows all the crud from firing to build up between the case and the chamber. That buildup will grab a case in the chamber quite solidly if you have a tight chamber, this is where the myth that steel is dirtier comes from, more blow by.
An example of this is what you are experiencing. My rifle is cut for true 5.56 NATO spec, not the usual .223 Wylde that most are and so will shoot the steel stuff all day, even with my suppressor attached without issues.
(if you have never run a rifle with a suppressor then you haven't seen a TRULY dirty rifle)

One ofther thing to consider is Tula is VERY far down on power. Probably some of the weakest ammo you can find.

 

Iyes its dirtier, but my philosophy is that if I own a gun that cant run anything, its not a gun worth owning.

+1 Amen to that!!!

 

I'm just surprised that your indoor range allows steel ammo. I run Wolf polymer steel ammo through my AR and they work just fine and are surprisingly accurate too.

 

mine eats tula just fine. not that I have a lot through it but if I were to have problems I figure it would be immediately apparent.

 

I've ran hundreds of Tula through all my AR's, piston & DI w/o a single issue . Shoots & ejects great. I've even ran it through my AR .308 DI rifle.

 

i'm pretty lucky. my AR loves steel cased ammo. i've never had an issue with anything i've put through it.

 

Problem solved!

1st picture says it all in about .4 seconds

Notice that dragy scrapy "key on the paint" look down the side of the shell, and that shiny little ding right above the rim?

BURR or left over bullet coating that's stuck in the chamber...time to rub a dub dub scrub it clean (ever heard of sticky bolt syndrome on the Russian Man cannon...well same thing..but on an AR that FORCEABLY snatches the round out with gas pressure... what do you expect to give...the extractor, or that soft maleable metal of the cartridge

Your AR is doing what it is supposed to be doing...YOU ain't! Clean the chamber shiny smooth!

Believe it or not...a teeny bit of gun oil on the fingers when you load your mags also helps [kinda like resizing oil], keeps em slicky smooth

 

Problem solved!

1st picture says it all in about .4 seconds

Notice that dragy scrapy "key on the paint" look down the side of the shell, and that shiny little ding right above the rim?

BURR or left over bullet coating that's stuck in the chamber...time to rub a dub dub scrub it clean (ever heard of sticky bolt syndrome on the Russian Man cannon...well same thing..but on an AR that FORCEABLY snatches the round out with gas pressure... what do you expect to give...the extractor, or that soft maleable metal of the cartridge

Your AR is doing what it is supposed to be doing...YOU ain't! Clean the chamber shiny smooth!

Believe it or not...a teeny bit of gun oil on the fingers when you load your mags also helps [kinda like resizing oil], keeps em slicky smooth

I clean the **** out of my gun this case was in my pocket with keys for 4 houres before i got home to write about it but thanks on the heads up and i didnt ever think about gun oil on the casings...but as i said ill never run steel anyways ive had enough with the 200 ive used...the funny thing was the first 120 rounds i didnt have even the slightest problem...o well american made bress 5.56 is my friend and ive ran at least 8k or brass .223 & 5.56 and have had 0 problems..due to how clean i keep the internals of my AR

 

Bought 500 rds of Tula from Gander for $139 and took it to the range. Fired all 500 with no problems at all!

 

Bought 500 rds of Tula from Gander for $139 and took it to the range. Fired all 500 with no problems at all!

see 139 for 500 is super cheap and thus the reason people buy and shoot it compared to 175 at the cheapest for wally world .223 american eagle or federal...

 

Well i know that i fired 2000 rounds of Herters without cleaning the rifle..... And in the first 500 rounds i have at least 10 problems with the tula seems like a ammo problem to me not a rifle problem. If i have to clean my AR after 500 rounds i should have bought a AK.

 

I couldn't even begin to count the number of steel rounds I have put throughmy 2 ARs (Colt Sporter and Doublestar). I have never ever had a failure of anytype either with the rifle or the ammo. I have yet to replace any part due towear or breakage. But then I clean and maintain my rifles the way I was taughtin the Marines. I shoot them, I clean them...thoroughly. Every time.

 

and as a after thought i think i should add that when i take the AR out it gets a few hundred rounds put through it in a day and cleaned that night so it's not like it never gets cleaned and in my situation it is full auto so that may not help either.

 

extractor marks on the case head are usually not a problem with ammo and more of a problem with the timing of the rifle. What length is your barrel?

 

extractor marks on the case head are usually not a problem with ammo and more of a problem with the timing of the rifle. What length is your barrel?

its a daniel defense 16'' fluted upper...dpms lower magpul stuff and a cheap optic that works for me

 

 

and just for fun

 

its a daniel defense 16'' fluted upper...dpms lower magpul stuff and a cheap optic that works for me

So what kind of bolt carrier and buffer are you running?

 

So what kind of bolt carrier and buffer are you running?

the DD upper was complete and i have not replaced any BCG parts so...DD mil spec still and the buffer tube & spring is dpms comercial spec

like i said i have had 0 misfires with brass... im just going to stick to what my ar likes and im very happy with it otherwise and the reason for this thread is bc i have only had a problem with this tula ...and its not my built ar...i know that much

 

the DD upper was complete and i have not replaced any BCG parts so...DD mil spec still and the buffer tube & spring is dpms comercial spec

like i said i have had 0 misfires with brass... im just going to stick to what my ar likes and im very happy with it otherwise and the reason for this thread is bc i have only had a problem with this tula ...and its not my built ar...i know that much

So then the DD should have a full auto carrier... My thoughts of what is going on is that the rifle is being over gassed (gas hole could have been drilled a lil' big?) when running steel, thus the timing is off an its running a bit fast. The over gassing is what is causing the extractor marks, because what happens is the gun is trying to extract the case before it's contracted from the chamber enough to be extracted without excessive force, thus you have the marks on the cases (and remember steel steel expands/ cools slower so it's exaggerated)

If your rifle experiences similar results with brass in the case head, your rifle is definitely over gassed. But if it's fine i'd just say don't shoot steel. and stick to brass.