Decocking a VZ58

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bush1

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Hey guys, what's the secret to decock a VZ58 without dry-firing it.

With my CZ858, I pull the bolt carrier back, pull the trigger and while holding the trigger, slide the bolt carrier forward and, voila, the striker is forward, the gun is decocked and I can remove the rear cover for cleaning.

The VZ won't do that. I know they are different guns made by different companies but.......

I don't have a 7.62 snap-cap so firing a shot out my back door is an option as long as the neighbours don't mind.;)
 
Same internal parts so, you should be able to. However, you should manually eject your round before attempting to do that and your magazine should be removed.
 
I'm saying this out of ignorance, but is dry firing the CZ that big of a deal? I thought it was more of an issue for the older firearms.
 
bush1 said:
With my CZ858, I pull the bolt carrier back, pull the trigger and while holding the trigger, slide the bolt carrier forward and, voila, the striker is forward, the gun is decocked and I can remove the rear cover for cleaning.
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I can do this with my CSA Vz.58. What kind of Vz do you have?
 
bfiles said:
Dry firing it will not hurt the CZ/VZ/CSA/FSN yadda yadda...

I thought the only firearms you dont dry fire is rimfire guns, yes, no????
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Nope you can dry fire rimfires all day long. The only gun you don't dry fire is a well used antique as the firing pin will have developed microscopic cracks in the crystalline matrix of the steel and the dry firing can cause the pin/hammer to break.
 
^ sorry but that's a load of bs. If the steel has microcracking in the grain boundaries, dry firing or live firing would quickly lead to failure. The steel in antique guns is not as tough and homogenous as today's alloys, and if you have a firing pin failure in an antique, blame the quality of the steel, not dry firing.
 
Throttle_monkey1 said:
^ sorry but that's a load of bs. If the steel has microcracking in the grain boundaries, dry firing or live firing would quickly lead to failure. The steel in antique guns is not as tough and homogenous as today's alloys, and if you have a firing pin failure in an antique, blame the quality of the steel, not dry firing.
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f:P:
 
Throttle monkey try use big words and comes across as a complete retard.

Of course the AGED steel is not as good. Notice how I said well used, even modern steel will develop cracking over time with extended aging and use. How many broken bolts have you examined using an electron microscope...yah didn't think so.

:jerkit:
 
VanIsler said:
Nope you can dry fire rimfires all day long. The only gun you don't dry fire is a well used antique as the firing pin will have developed microscopic cracks in the crystalline matrix of the steel and the dry firing can cause the pin/hammer to break.
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not sure i agree with you here...

Dry firing centerfires is ok, but from my experience, dry firing rimfires can cause deformation at the breech where the the firing pin would normally strike the cartridge rim and could possible damage the pin too.

At the end of the day I really don't care, you can can do whatever you want to your guns - just don't do it with mine.
 
Lol, actually I have used SEMs quite a bit in the past. And you're right, steel can exhibit fatigue cracking after extended cyclic loading. I take issue with your statement that dry firing will somehow accelerate fatigue failure.

Dry firing could cause premature wear if the firing pin travels further than when the hammer/striker is dropped on a live shell/snap cap slamming the pin into the end of the channel it rides in in the bolt. Of all the variables that one must think about when a firing pin fails, dry firing is at the bottom of my list. Material defects, stress concentrations, improper hardening etc are all bigger things to worry about IMHO.

But then again I'm a complete retard that works at McDonald's right?
 
Throttle_monkey1 said:
I take issue with your statement that dry firing will somehow accelerate fatigue failure.
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I said the exact opposite. If the metal has already been stress fatigued from years of use, heat cycles and corrosion cycles, then yes it can be a problem.

I haven't experienced issues with dry firing rimfires but if there is an issue with some rifles I concede defeat. Thanks for showing some class and not saying "That is a load of BS..."; especially when you should know better. Read what I wrote again throttlemonkey...WELL USED ANTIQUES. :HR:
 
Oh and the fact that you knew what an SEM is shows me you know a thing or two. I had the pleasure of using one at NRC Ottawa.
 
They are very fun to use. Looking at microstructures and fracture surfaces is fun and all, but nothing like looking at bugs and other stuff.

I admit I misread what you said. I took it as dry firing being the cause of failure. My bad
 
I was told not to cycle the action with no brass or snapcaps in the chamber something about messing up the headspacing didn't really refer to dry firing just letting the bolt fly forward. i believe the steel on steel contact with no cushion is hard on things.
 
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