Brass ejecting to 1 o'clock [Archive]

bigkracka

10-26-21, 13:46

Why would a properly gassed ar eject brass to 1 o'clock?

titsonritz

10-26-21, 14:01

Overgassed. The brass is hitting the deflector with force and shooting foward.

georgeib

10-26-21, 14:07

The only reason a PROPERLY GASSED rifle would eject to 1 o'clock, that I'm aware, is because the extractor spring is weak and is letting go of the case too early.

bigkracka

10-26-21, 15:18

The only reason a PROPERLY GASSED rifle would eject to 1 o'clock, that I'm aware, is because the extractor spring is weak and is letting go of the case too early.
I'm running a low round count colt BCG. I'll check the spring.

georgeib

10-26-21, 15:32

I'm running a low round count colt BCG. I'll check the spring.

Understand that the other common reason this is happening is that the rifle is very over-gassed.

bigkracka

10-26-21, 16:05

Ive got a BRT .0635 gas tube in it, doubt its overgassed.

georgeib

10-26-21, 16:10

Ive got a BRT .0635 gas tube in it, doubt its overgassed.Likely the extractor spring then.

markm

10-26-21, 17:04

I couldn't offer anything without shooting the gun. Ejection direction doesn't tell the whole story.

ggammell

10-26-21, 17:06

What ammo? Is it consistent across several types of ammo?

bigkracka

10-26-21, 18:07

Ammo is brass 5.56, federal mostly.

Just checked the extractor spring, seemed ok but changed it anyway. New one(Colt gold) *seemed* a little less springy, but only has 300rds on it give/take.

bamashooter

10-27-21, 07:28

A few reasons. None of concern if gun is properly functioning, reliable, "mil-spec" accurate. The infamous ejection-pattern "pie-chart" is pretty much worthless, especially with commercially-produced, box-store ammunition.

"Brass ejecting to 1 o'clock
Why would a properly gassed ar eject brass to 1 o'clock?". While I'm here the bold infers a factual conclusion and begs the question, how do you know that?

mpom

10-27-21, 10:14

I would speak w BRT, as the assumption is that the gas tube is correctly sized, yet brass is being ejected as if system is overgassed.

Mark

MistWolf

10-27-21, 11:05

I would speak w BRT, as the assumption is that the gas tube is correctly sized, yet brass is being ejected as if system is overgassed.

Mark

Unless the extractor spring is weak (a spring that's failing or is not up to spec, such as an M16 extractor spring), even an over gassed and under buffered AR will not eject at 1 o'clock.

Deadman William

10-27-21, 11:45

i dont have much to add, except to perhaps emphasize that brass direction is one of those things.... most guns appropriately gassed will drop brass around 3:30-4:30, but a fully, correctly, functioning gun can drop brass anywhere from 1:30 to 5:30. i really think brass direction is only useful as an additional diagnostic tool when its accompanied by some kind of hiccup, and can then possibly be useful in helping to zero in the nature of the problem. but never is conclusive by itself, or even dependably close to conclusive.

brass direction gets way over emphasized on these guns boards. in my humble opinion. op, i would ignore it absent any other issue.

mpom

10-27-21, 13:18

OP has not given specifics on the firearm; we are assuming buffer, spring and bolt carrier are of mainstream weights, spring strength. Lightweight components would require less gas.
Mark

bigkracka

10-27-21, 17:42

Thanks to all for the replies.

Barrel is 11.5 colt FBI(heavy), Omega 30cal can, colt BCG, H2 buffer and Tubbs flatwire spring. I have replaced the Tubbs with usgi, and as mentioned the extractor spring/bumper with Colt gold extractor spring.

donki1967

11-01-21, 11:29

My AR15 ejects to 1 o'clock constantly, it is not a problem and allows me to collect the cases directly in my bag ...

HKGuns

11-01-21, 19:42

i dont have much to add, except to perhaps emphasize that brass direction is one of those things.... most guns appropriately gassed will drop brass around 3:30-4:30, but a fully, correctly, functioning gun can drop brass anywhere from 1:30 to 5:30. i really think brass direction is only useful as an additional diagnostic tool when its accompanied by some kind of hiccup, and can then possibly be useful in helping to zero in the nature of the problem. but never is conclusive by itself, or even dependably close to conclusive.

brass direction gets way over emphasized on these guns boards. in my humble opinion. op, i would ignore it absent any other issue.

I agree, while not an AR, my HK91 slings brass 50 yards at around 2:00 and works perfectly.

Let us know if your changes work OP. I’ve been reading this one with interest.

bigkracka

11-01-21, 20:46

Will do. Was supposed to shoot yesterday but that got canceled.

abso

11-06-21, 01:28

You could also shoot weak ammo (silver bear, tula, pmc) to see ejection pattern changes and give you more data about the rifle being possibly overpasses.

Clint

11-07-21, 11:29

Bigkracka,

Shoot us an email with your order number and we'll double check the numbers.

bigkracka

11-07-21, 11:58

Appreciate it, but I believe the .0635 tube is correct. I just ordered one of your preset 10-12" carbine suppressed tubes and the hole is quite smaller compared to the .0635 I believe that with the weak(ish) extractor spring were my issues.

Hohn

11-10-21, 05:33

So you solved the issue? What is it doing now?

1168

11-10-21, 05:59

Edit: deleted. I re-read and don’t believe my post was relevant.

bigkracka

11-10-21, 06:56

I sold the FBI barrel and am looking for a lighter profile bbl. If I have this issue with the new build I will start a new thread.