3 malfunctions in a class today.

[Swstock]

Hi everyone. Im hoping someone can shed light on this

I took a primary-secondary class today and had 3 malfunctions out of roughly 400 ar rounds.

I couldn't inspect much as it happened because they were all mid drill and I needed to get back into the drill.

The first 2 were fail to feeds. The bolt picked up the round but didn't push it into the chamber. It appeared to get stuck on the feedramps.

For the last one, I had a click but no bang. I pulled the charging handle but it didn't move. I dropped the mag, pulled again hard and cleared it.

Upper parts were: Aero Precision receiver
Ballistic advantage 16" middy barrel
Rubber city armory bcg
Geissele CH

Ammo was 2009 bvac psp that I just wanted to burn though

Mags were series 2 hex 10/30s.

I thought the first 2 were ammo related so kinda dismissed them.

The last one really concerned me.

Can it all just be that old ammo?

[SDSwoll]

Check for burrs on feed ramps and in chamber area first to rule that out. Given the feeding issues you also had I would guess the last malfunction was from a rough area, nick, burr etc. on the round itself which prevented the bolt from fully locking (click no bang) and then grabbed the chamber resulting in the extra hard extraction. Were u able to check the primer on the last round to see if it had been struck?

[ggammell]

Try running some ball ammo. Perhaps that pointed soft point was the cause.

If I recall, they did not have a good reputation. And a quick google search shows that they don’t even have a website anymore. That’s a sign.

[26 Inf]

Try running some ball ammo. Perhaps that pointed soft point was the cause.

If I recall, they did not have a good reputation. And a quick google search shows that they don’t even have a website anymore. That’s a sign.

BVAC was bought out by a couple of investors who proceeded to gut the company that Darren Newsom had built. They did stuff such as have the payments sent to Illinois (where they were) and didn't give the factory much money to pay bills and buy supplies - at the end they were on cash before we ship status with most suppliers.

In 2009, Darrin was still running the company, he didn't sell until 2010 and the ammo was some of the best remanufactured and new ammo you could buy.

[ggammell]

BVAC was bought out by a couple of investors who proceeded to gut the company that Darren Newsom had built. They did stuff such as have the payments sent to Illinois (where they were) and didn't give the factory much money to pay bills and buy supplies - at the end they were on cash before we ship status with most suppliers.

In 2009, Darrin was still running the company, he didn't sell until 2010 and the ammo was some of the best remanufactured and new ammo you could buy.

Interesting. I didn’t get into the game serious until 2012 so that’s my frame of reference.

And for anyone else following, the PSP comment was aimed to be a technical response to the question. Kind of a two part response if you will.

[MegademiC]

Sounds like bad ammo. If it was stuck in the chamber could thst slow the bolt enough to cause a short stroke?

Im thinking two almost stuck cases, and a bad round that was the dud that was stuck and didnt fire for some reason.

... or 2 mag issues and a separate ammo issue?

[thehammer69]

Hexmag issue maybe???

[Swstock]

I wasn't able to recover the round. There was about 6 inches of snow on the ground. It's gone forever.

I'll try to put a couple hundred rounds of ball though it before my next class (April 29).



I used the mags in another gun and it has no failures. I will say that they were almost impossible to insert on a closed bolt when fully loaded.

I really hope it was ammo. When I zeroed the upper in with ball ammo and aluminium mags, it was fine. I just didn't put many rounds though it. I just zeroed it and left.

[BrigandTwoFour]

I posted about a similar issue during a class back in October. The round would get stripped from the mag, but would get caught halfway into the chamber with the bolt pinning the side of the cartridge against the feed ramp (left a big dent in the brass). The takeaway was short stroking. That particular barrel (Centurion CHF Middy) has had issues in the past with underpowered ammo and cold temperatures, and I think the lube wearing off after 400ish rounds sealed the deal.

So, in short, use more lube or use ammo with a bit more pressure.

[MistWolf]

Was a lock back check performed?