Ar15 reloading help needed

[wraithen]

That test doesn't sound that conclusive. If it worked for all the rounds thats one thing. Another thing to check is once the bolt closes tap ur forward assist. If they all do fine then its definitely sounding like ur buffer spring.

[FALFire]

What brand is this or is it a home built AR? If it's a DPMS, there have been some sketchy reports of tight chambers over the years.

How about some specs on the entire AR front to back. How old is it? What factory ammo are you shooting through it, what has worked and was has not worked? 

Need more info.......

Thanks,

Gary

[204chucknorris]

Okay here we go. It is a new bought DPMS ar15 223/5.56 chambering. 20inch stainless barrel. I have done nothing to it except a new trigger set. As for brass it is a mix of hornady/Winchester/Remington/ and some marked lc.  As for how many times it's almost been reloaded it varies as I have a 1000 rounds and some is only once fired/once reloaded to 5 times reloaded. I mentioned previously that it was only reloads that did it but tonight I had some HSM that also did it. I also tried some hornady which functioned flawless for 5 rounds numerous times. The reload is with 69gr smk bullets currently seated with coal at 2.250. It shoots just fine and functions great except this issue when a unfired round is needed to be removed. I have emailed DPMS tonight with issue in hopes of some light being shed. O and last of all it has about 500 rounds or so through it.

[FALFire]

Here is what I would do....

First off, just be aware, DPMS may not honor the warranty if you told them that you have run reloaded ammo through it. They state that in their warranty clause. If they are willing to accept it for return for repairs, you are going to need to install the factory fire control group. If you send it back to them with your new wiz bang fire control group in it, it's likely you will not get it returned to you with your new one still in it. It has to do with civil liability and once they take possession of it, it becomes their responsibility to be 100 percent certain it is safe per their lawyers. Plus they may charge you for a new stock fire control group. So please remove your new one and send it back with stock components.


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DPMS Three Year Limited Warranty

This DPMS Firearms, LLC firearm is warranted to the original retail customer for Three Years from the date of purchase against defects in material and workmanship. All parts and labor or replacement at our option are covered.

Transportation to and from our repair facilities, government fees, damage caused by failure to perform normal maintenance, sales outside the United States, damage due to high velocity, high pressure, reloaded, or other non-standard ammunition, or any unauthorized repair, modification, misuse, abuse, or alteration of the product is not covered by this limited warranty.

Any implied warranties, including the implied warranties of merchantability and fitness for a particular purpose, are limited to one year from date of purchase. Consequential or incidental damages and/or expenses, or any other expenses are not covered by this warranty.

To obtain warranty performance send your firearm with proof of retail purchase, freight prepaid to:

DPMS Firearms, LLC
3312 12 Street SE
St. Cloud, MN, 56304

Alterations & Modifications Warning
Altering or modifying parts is dangerous and will void the warranty. This DPMS Firearms, LLC rifle was manufactured to perform properly with the original parts as designed. It is your duty to make sure any parts you buy are made for this rifle and are installed correctly and that neither the originals nor the replacements are altered or changed. Your DPMS Firearms, LLC rifle is a complex precision tool with many parts that must relate correctly with other parts in order for proper and safe operation. Putting a rifle together wrong or with incorrect or modified parts can result in a damaged rifle, serious personal injury or death to you and others through malfunction. Always have a qualified gunsmith work on your rifle or at least check any work not performed by a gunsmith.

Barrel Information Warning
To achieve the best results for accuracy you should clean the chamber and bore after every round for the first 25 rounds, then every 10 rounds up to 100 rounds. It usually takes about 200 rounds per barrel for optimum accuracy. Please keep in mind that our barrels are production barrels, not custom barrels. Accuracy is dependent upon many factors such as bullet weight, powder load, rifling twist, rifling lands, operator technique, etc. Our production barrels have achieved anywhere from .125" to 1.5" M.O.A.. Obviously, we would hope that every production barrel would shoot .5" M.O.A., but with all of the above factors, we cannot guarantee a specific group size. NOTE: Using reloaded ammunition will void warranty. Modifying chamber or barrel voids warranty. This includes re-reaming of chamber, re-turning barrel to a lesser diameter and/or re-threading barrel for compensator or attachments.

A Note on Receiver Fit
DPMS lowers have been designed for a tight fit between the upper and lower. You may find that the rear takedown pin hole may need to be polished or honed. We feel that a tight fit is better than a loose fit. We hope you agree.


   
   

[204chucknorris]

I remember reading all that warranty grey area. I only told them what they need to hear as for the failure. Good point in the trigger. I am more looking for ideas versus sending my gun away.

[demontang]

Make sure you check the spring on your extractor clean the bolt lugs in the upper really well and make sure nothing fall in there and is jamming it up.

[Heredoggydoggy]

I was having a problem extracting unfired rounds from my 6.8 SPC AR.  Turned out to be some hard crud in the chamber.  Gave the chamber extra attention on cleaning--problem solved.

[204chucknorris]

Well just spoke to DPMS and they feel it is a chamber issue. Like as he says the chamber is to tight or not deep enough? Obviously recommends. Sending in my upper and wait a few weeks for repair/inspection. SOOOOOO now I just need to decide if I am going to send it in, change barrel, sell it, trade it in, or? Just a little unhappy as I thought I bought something better than this?! Well thanks to all and your input as it has been much appreciated.

[FC]

Has this rifle ever worked right reliably? If your chamber wasn't deep enough you would be having other issues. Is the chamber spotlessly clean and shiny? Did you use a chamber brush to get it that way?

[204chucknorris]

Lucky for me I am stubborn so I am not giving up yet. Going to go back and run the chamber brush even more just in case along with some help from a friend whom is always messing with these things in hopes we or he will find the issue. Till later shoot em up.

[FALFire]

If you want to try polishing the chamber.....Get yourself a .410 soft swab end for cleaning shotgun barrels, soak it in Flitz Metal polish, attach the swab to a section of shotgun cleaning rod, stick that into a cordless drill motor and polish the chamber. Just be sure to clean it out real good with solvent afterwards. That chamber will shine like a diamond and possibly allow those finicky cases to chamber just fine. After talking to Carl at BlackHole weaponry, he made a comment one day that he throws DPMS barrels in the trash can so at least I know what he thinks of them.

[high country]

Smoke a case with a candle and cycle it. It should show your problem areas. For anyone reading about chamber polishing, don't do that on a bolt action rifle.

[wraithen]

High Country, nice one for saying that. You prolly just saved someone a huge headache!

[FC]

After talking to Carl at BlackHole weaponry, he made a comment one day that he throws DPMS barrels in the trash can so at least I know what he thinks of them.

Why is that?

[high country]

I bet it has nothing to do with him making ar barrels....lol.