Possible ammunition malfunction

[Harry136]

Hi

I was out this morning at the gun club, using my Browning Maxus 12g S/A with Gamebore 28gm Evo cartridges.

It was from a fresh slab and nonoe of the other 49 cartridges fired displayed the same problem.

When i fired the cartridge, what appeared to be muzzle blast exited from the ejection port!

Anyone ever experienced this and what could be the cause?

[TIGHTCHOKE]

Do you mean the burn was slow and that the timing was affected allowing some of the propellant gases to escape through the ejection port because the payload was still in the barrel when the bolt unlocked and moved backwards?

[wisdom]

First off is the barrel clear?

[Harry136]

Barrel was clear, even hit the clay is shooting at! Tightchoke I think that you may have hit the nail on the head, although the shot fired same as any other, didn't seem slow in the slightest.

[rovercoupe]

Was the gun oiled when you last put it away? Had some interesting results using rem oil on my 1100 flames out of the barrel and a huge flash when ejecting the first round after a major clean and oil, went back to the normal stuff after and never had a problem since.

[snow white]

I have had same with a maxus and armsan and hatson oil in the barrel

[Harnser]

 

On occasion a self loader can fire out of battery meaning it is not fully locked up when the cartridge is fired . Give it a good clean and check that the rod that sits over the magazine tube is working the bolt fully backwards and forwards locking the bolt into the barrel chamber . Check this by removing the fore end and racking the timing rod back wards and forewords to see if the bolt closes tightly in the barrel chamber . If not a trip to your local Smith .

harnser

 

 

[ditchman]

i have seen this before on several occasions....a large flash at the ejection port..........never truly knew what caused it...

[HW95J]

Had this a couple of times when using my Webley 810 a few weeks back. Can't remember if it was Gamebore or Express that did it. A quick google suggests that it's actually pretty normal. No excess oil, barrel was clear etc. Was fairly low light which perhaps made it more obvious. Having not previously used a semi auto, the first time it did that was a bit of a shock! 

[GingerCat]

I suspect you saw the flash upon ejection and had not mounted correctly. Ie your too far over on the stock or it was tilted towards you.  

I've done it myself a couple (or more) times when hurrying to shoot a pigeon. 

[Rewulf]

Happens often on my Remi 1100 , mostly when its cold.

Just a slow burn and nothing to worry about.

[figgy]

I've had it on occasion, you get used to it. It really lights up on the marsh in the dark.

[oowee]

I see it every time I fire a shot in the dark. Does it not always happen? I thought it was just more difficult to see in the day the same as muzzle flash?

[Jaymo]

Think yourself lucky- I’m a southpaw 🙂

Using a right handed semi

 

[Cheesefiend]

This happened frequently with the faster gamebore carts in mine. I didn’t worry about it, but it was certainly eye catching (and not in the left-handed / right-handed stock combo kind of way). It must be disconcerting having things exiting a gnat’s whisker away from your face.

[Rewulf]

1 hour ago, Jaymo said:

Think yourself lucky- I’m a southpaw 🙂

Using a right handed semi

 

I shoot a right handed ejector left handed (right handed but left eye dominant) and it can be somewhat disconcerting when you get a big flash !
Its never had me eyebrows yet , but theres time yet 😄

 

1 hour ago, oowee said:

I see it every time I fire a shot in the dark. Does it not always happen? I thought it was just more difficult to see in the day the same as muzzle flash?

Fire most semi autos at night, shotgun or rimfire and you ll see a little bit of flame out the port.

Like I say , fairly common on colder days, something to do with the way colder powders burn.