Svt40 failure to eject

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I was out yesterday shooting in the bush with some friends, brought out my svt, sks & my enfield. Shot a box of ammo through the enfield, 80+ rounds through the sks without any issues whatsoever. My svt not so much, the first round that I loaded wouldn't eject after it fired. The case was jammed in the chamber so much that the ejector broke off a piece of the rim of the cartridge.

I tried to remove it but couldn't get the casing out, dropped by my local gun shop and they popped it out. The guy helping me pointed out the frosting on the outside of the casing, he recommended I clean up the inside of the chamber and try and remove any rough areas or burrs and that should solve the issue.

Anyone have this happen before, anything else I should look for regarding the stuck casing? I was shooting the new non corrosive Norinco 7.62x54r ammo that Canada ammo was selling, the round loaded and fired fine. When I stripped it down and cleaned the gun I wrapped the nylon brush in the sks cleaning kit with 800 grit wet/dry automotive sandpaper and attached the cleaning rod to a drill and lightly ran it in the chamber a couple times. Things feel nice and smooth now around the opening of the chamber. Hopefully that was the issue, will have a chance next week to shoot it again and see if the issue is solved or not.

Any feedback or ideas you have are welcome.
 
It happened to me with one rifle.
1. clean the chamber
2. Try different ammunition (new made steel case Russian civilian ammo never failed me)
Military ammo it is a hit and miss
 
@corwin-arms, thanks. I'll grab a box or two of different ammo and see what happens, after I de burred the chamber I made sure to clean the chamber well. I defiantly could feel a bit of a rough edge around the opening of the chamber, I might pull a couple bullets out of some Norinco rounds and see if the shells will load and eject manually as well as check for any shell scoring or frosting.
 
Polishing the chamber as you did is the route to go.Polish the casing of a round befor firing. Check the casing after firing and see if there is anything other than the latterel grooves.
 
You're on the right track by cleaning the chamber.
Although manual cycling will only tell you so much. The real thing is needed with the heat, expansion and pressure variables in play.
 
^^^yes to all above...

...i would have used polishing compound on a piece of cloth on a brass jag instead of the paper though...would take longer but is less aggressive...
 
Also make sure the flutes in the chamber are really clean! Really really clean. A dental pick or something might help getting any dried cosmo and/or dirt out of the flutes. And don't discount trying different gas settings, just because the bolt cycled doesn't mean it's set right.

Some People have stated that the Norc x54 won't run right in their SVT and others have had no problems so don't give up! Check everything.
 
If the case was frosty good chance it was corroded. I've seen this happen to another fellow at the range - he'd left the ammo in the bed of his truck overnight and it rained. It was copper washed ammo, so less resistant to moisture than the lacquered ammo, and it had a grey/green frosting. Every few shots it would rip a chunk of the rim off the case and leave the case jammed in the chamber. He'd break out the cleaning rod, and a spare rod from his mosin for the extra length, and tap out the case.

When he switched over to some lacquered ammo I handed him to try the problem vanished.

Clean and deburr the chamber anyway, no harm in that, but double check the ammo.
 
Problem solved, polishing the chamber was the ticket. Just got back from my week away, took out my sks and svt with the inlaws. Put a 100 rounds through the sks, man I love that little rifle and so did everyone else. I picked up a couple boxes of sp 7.62x54r MFS as well as some surplus corrosive ammo to see if the non corrosive norinco ammo was the problem with the svt40.

Put five of the MFS through the svt without a hiccup, all ejected fine. No visible frosting, ran five of the new norinco through with no issues as well. All in all I put 50-60 rounds through it with the only issue being some of the norinco would get caught between the bolt and the body of the action when it ejected, which was a non issue. It really seemed to like the MFS best but the new norinco shot fine, didn't bother to shoot the corrosive as the norinco was shooting well. No FTF or FTE, and it was fun as all hell to shoot. It will be seeing some use in the future, that I can guarantee. Was consistently hitting 4-5" groupings at 100yards, was more excited that it actually worked, next time I'll see if I can tighten up groupings.
 
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Dad003 said:
for your norinco not ejecting you just have to turn the gaz valve and that will solve it ...
Click to expand...

It wasn't so much a fail to eject, every 1 out of 20 rounds (if it happened) would get hooked on the extractor. So when the bolt would close and load a new round the old casing would get caught between the bolt face and the body of the action. I'll try a higher gas setting to see if it makes a differance. Most of the time it didn't happen, once in a while a spent casing would get caught.
 
i dont ron norinco ammo in mine , and it run perfectly at 1.1 on the gaz setting and everything eject fine , by what you describe it need to be turn up a little on the gaz setting because he dont have enough force to eject it
 
mbogo3 said:
Wasn't the new Norc 54r ammo found to be corrosive after sold as non?Harold
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From the looks of it some of it was found to be corrosive and some was non corrosive, mine nail tested non corrosive. I've been cleaning it the same as if it was corrosive just to be on the safe side. After I run through the lot I have I'm going to switch to the corrosive 7.62x54r, I don't find it a pain to clean it the same day. I enjoy sitting down, stripping and cleaning my guns.
 
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