Picked up one of these a few days ago. Have yet to fire but I was performing some basic function checks. I was manually ejecting a few rounds and noticed the rounds have some damage. All of them have a cut in the same area. Only happens when being fed by mag. Not occurs when rounds are ejected. I’ve verified that already.
This cannot be normal. Have any of y’all seen this? I’ve never seen this on any AR rifles, pistols, etc. from PSA that I own.
Recommendations? Go ahead and send for warranty before even shooting? Feed ramp doesn’t look sharp. Maybe the chamber has sharp edges?
Looks like a Feed-Lip-Polish or (more likely) a Magazine Feed error.
BTW - get some SnapCaps for Administrative Handling of autoloading firearms - the action of stripping a round out of the magazine and chambering it slightly compresses the bullet into the case.
On non-roll-crimped rounds especially (like say, Handgun Ammunition) it can push the bullet in far enough to affect chamber pressure.
Repeatedly re-chambering the same live cartridge and then eventually firing it is a Bad Thing™.
I like the A-Zoom brand. I have SnapCaps for every single caliber I own, and a few calibers I don’t….
I have the exact same mark on my brass from my AR-V which I shot for the first time today. Used 3 PSA mags and PMC Bronze 9mm Luger Ammo 115 Grain Full Metal Jacket.
Out of 300 rounds I probably had 75-100 failures. The first round in each mag would fail and then every two to three rounds would fail. There are metal shavings all over my lower.
Yes, the rounds that failed to feed had deep cuts in the back of the brass as well is in multiple places on the copper jacket. These little cuts look like scratches which match the metal filings inside the lower. They look like metal hairs.
I’ll have to take a picture of one of the rounds that failed to feed and the inside of the lower.
Each round was only loaded once. I always check a few rounds on a new gun for any abnormal stuff like this before shooting at the range for the first time.
After looking at those pics…. I have my own theory. But before I write it here…. I will give the same advice that I give so many others on the forum.
Use your iPhone camera. Have someone else hold the ARV steady and fire a few shots……while you are taking a “close up” VIDEO of the bolt & chamber area. Use the “Slow Motion” mode when taking the Video. Do this in good bright light. You will be surprised by how much detail you will see in the operation of the gun. You should see exactly what is going on with those odd marks on the failure to chamber ammunition.
That iPhone camera is a great diagnostic tool that we often forget about. ……it’s all about “close up…slow motion” Good luck and let us know what you learn.
@iznthesky I brought it into the store where the staff tested it out and experienced the same issue. They checked it in for repair so I can’t get more photos. what is your theory?
My theory was for you…,thinking you were going to fix it yourself. But since the professionals are working on it…… I shall keep it to myself. No doubt they will take good care of it for you.
I don’t know how the round gets lined up correctly with that setup to begin with. In a pistol, the barrel tilts upward to line up with rounds tilted in mag. That doesn’t happen with tapered rifle cartridges feeding into a rifle. I don’t pretend to be a gunsmith, but looking at the pics, it seems predictable that the round not lining up with chamber and is being jammed in at incorrect angle. The case is bent and the back of the cartridge is also damaged.
Maybe someone who owns and has experience with this setup can explain how it is supposed to operate.
@iznthesky I would still like to know what you think it might be even if I sent it in. If you don’t want you share it publicly, pm me; I am curious what you think was causing it.
