Wtf??!? Vz58 problem...

[CobraGT]

So, I've had an 858 for ages, with no problems. Bought my 58L (the non-restricted chrome-barreled version) last summer here on the EE, and had it out once. On that range trip, I had a casing get jammed in the chamber; the extractor tore a chunk off the rim (see below).

I've had it out a couple of times in the last few months, and the problem is now recurring, like every 10th shot or so WTF is causing this??!? Anyone else experiencing this?

FYI, the gun's always thoroughly cleaned and oiled, and the ammo is the 'Canada ammo' corrosive Czech stuff.

 

[wobbles99]

How does your chamber look? Are there any burrs, scratches or pits in the surface.

Chances are some blemish is holding the case in the chamber.

 

[obiwanbonjovi]

FYI, the gun's always thoroughly cleaned and oiled

I would suggest maybe your chamber has some oil in it do the cases feel oily at all?

 

[DaveGP]

I don't think it's oil, or she'd be rocketting outta there no prob...I'm also thinking a chamber issue...

 

[Clobbersauras]

Get yourself a chamber brush and go to work....she's probably dirtier than a liberal handout...

 

[CobraGT]

Thanks, guys Visually, the chamber looks good - no obvious burrs or anything. That was my first thought, too. I'll try really scouring it out, though, and see if the problem goes away...

...at least I know the ejector/extractor/whatever it's called is working!

 

[obiwanbonjovi]

I don't think it's oil, or she'd be rocketting outta there no prob...I'm also thinking a chamber issue...

Oil does not serve to ease extraction. Oil will fill the small striations on chamber and case when cartridge is fired and act like a boot stuck in the mud making extraction very difficult. Chamber should be clean and dry. Also any chamber issues should be visible on the fired brass.

 

[HeadDamage]

I also say clean the chamber. The lacquer from that ammo sometimes builds up in the chamber and causes hard extractions.

 

[KaiBosh]

Dude, clean your keyboard after that!

 

[chopper 1]

Just A little Bit

A polish with flitz would help

 

[Syracuse Steve]

...another suggestion...

...you could also try another (different) brand of ammunition as well....

 

[DaveGP]

Oil does not serve to ease extraction. Oil will fill the small striations on chamber and case when cartridge is fired and act like a boot stuck in the mud making extraction very difficult. Chamber should be clean and dry. Also any chamber issues should be visible on the fired brass.

Thats a negative good buddy...
The Swedes recommended oiling the casings on the Ag 42/b to ease extraction woes - the Italians did the same on their horrible tray fed GPMG....
Do we not lube cases when resizing?

 

[vladb]

Chamber should be clean and dry from oil.I had a same problem at first day. I cleaned the chamber from oil and never had a problem after that.

 

[Deckard]

Let's keep the cartridges though, Vlad.

 

[Ganderite]

Tried any other ammo? There is a slight chance the cases heads are too brittle.

 

[CobraGT]

Haven't tried any other ammo, but this ammo feeds well in my 858... go figure

I cleaned the heck out of the chamber; we'll see if that helps

thanks!