I don't understand what you mean by a "factory case from my last AR."

Was it a new factory loaded round? How did it come from your last AR? :confused:

http://www.cotep.org/forum/picture.p...pictureid=1046

That sucks, keep us posted.

I had an AR before this one . I also had some once shot cases from factory loads on hand so I tried one in these and it hard locked the bolt just as my recent Reload cases and cartridges.

Make sense now ? Now I am confused as usual .

Back to my original question:

Answer: Reloads, Not factory loads. (fired brass is no longer factory ammo)

So let's try again:

Did you try any factory loads in it? If so, did they work?

This is one of the reasons why gun manufacturers usually have a disclaimer that reloads void the warranty.

IF FACTORY AMMO WORKS, which you haven't answered yet, then:

If you tried an unsized case, then that just means your last AR had a large chamber.

If you tried a sized, but untrimmed case, that means your case length was too long.

If you tried a sized and trimmed case, it means that your chamber is tight (a match chamber, for example) and the die is not sizing the case down enough and you need small base dies. OR you didn't set up the sizing die correctly and the case length is too long.

IF FACTORY AMMO WORKS, All of the above are the fault of the reloader, NOT the manufacturer.

http://www.cotep.org/forum/picture.p...pictureid=1046

^^^this^^^

Small base dies will correct the problem if you have a very tight chamber.

The upside to a tight chamber is they tend to be more accurate, figure out your leade (freebore), modify your seating length as appropriate, and you have a tackdriver.

The downside is small base sizing tends to reduce the life of your brass.

If I were you, I would pick up a few boxes of factory ammo from different manufacturers and try them one box at a time. Note any brands that do not chamber.

If all factory ammo will not chamber, contact PSA, you have an undersized chamber per SAAMI specifications.

Too late - He already sent it back. Apparently without ever trying factory loads in it.

http://www.cotep.org/forum/picture.p...pictureid=1046

I had the same problem with an Armalite AR15 not very long ago Arley. Could not seat a single round, putting one in by hand it would go about 3/4 of the way and stop. The LGS sent mine back to the distributor as defective and I bought an Adams Arms instead.
The Armalite was a .223 Wylde was yours by any chance?

Mine is from PSA I discovered a broken off neck from the 3rd round shot . It was a reload . Not sure if they will honor a guaranty . Called a local Smith and he is going to look at it today . The barrel was only a $100 . so it may not payoff to fix it . We will see . Hopefully that is all that is wrong . I have heard that some of PSA s barrels have problems . Had I known that I would not have bought it .

Not all of them are crap. FN makes their premium and chf barrels. I haven't heard of any issues with those lines

this signature exceeds the 15 character capacity count

So I had the exact same issue with a PSA ar when I first got it...round was all the way in battery but I couldnt get it to come back out...probably a bad idea but I opened up the upper off the lower re cocked the hammer and fired the case out...never had an issue ever again.

I did notice that I had a wear mark on the upper where the cam pin rotates over, and Ive seen a lot of PSA uppers so that. My guess is the cam pin was resting against the inside of the upper and caused the issue till it made just enough clearance to fit.