Any thoughts on what caused the failure in this video?
[/video]
As you can see, the barrel just pops out!
Video of M53 Failure
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JBaum
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Re: Video of M53 Failure
Try loading the actual video instead of a link to facebook.
If you're unable to do that, send a link to me and I'll see what I can do. Take out the <remove this> from my email address below.
If you're unable to do that, send a link to me and I'll see what I can do. Take out the <remove this> from my email address below.
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maxfaxdude
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Re: Video of M53 Failure
Was the barrel changing latch securely locked in place before firing?
Re: Video of M53 Failure
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JBaum
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Re: Video of M53 Failure
If you are using old ammunition, try some modern cartridges. The old ammunition, depending on manufacturer, may be loaded with too much power for your gun. Make sure that the barrel latch is properly closed. What size nozzle hole is in the nozzle inside the flash hider/muzzle booster? It looks like your recoil is excessive, and that will blow the barrel door open.
Re: Video of M53 Failure
That's not my gun, that's from a gunshop here in Poland.
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JBaum
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Re: Video of M53 Failure
He must check the headspace of the bolt/barrel combination that he is using. If the headspace is too little, the rear of the cartridge will blow out and what is shown in the video will happen. I have seen this before.
Headspace is checked with the bolt and barrel out of the gun. Each bolt/barrel combination must be checked to make sure it is correct.
The bolt must close and the ROLLERS MUST FULLY LOCK with the "GO" gauge inserted, to ensure proper positioning of the bolt so that it closes fully and can fire the weapon safely.
If you don't have headspace gauges, using the actual cartridge as a substitute is possible IF YOU REMOVE THE FIRING PIN during the test.
Test with the NO-GO gauge. The "NO-GO" gauge is the beginning of something bad that could happen and the bolt should not close and lock on the "NO-GO". I've seen many guns that seem to work OK if the headspace is A LITTLE excessive. When the headspace is too tight, the bolt rollers don't lock the bolt to the barrel. This results in a ruptured cartridge.
Also remember if you have a MG 3 barrel it is chambered in 7.62mm NATO.
The winchester .308 is not the same headspace as 7.62 NATO.
Well, from the looks of what Russia is doing to Ukraine, the gun dealer in Poland better get the MG42 fixed very soon.
Headspace is checked with the bolt and barrel out of the gun. Each bolt/barrel combination must be checked to make sure it is correct.
The bolt must close and the ROLLERS MUST FULLY LOCK with the "GO" gauge inserted, to ensure proper positioning of the bolt so that it closes fully and can fire the weapon safely.
If you don't have headspace gauges, using the actual cartridge as a substitute is possible IF YOU REMOVE THE FIRING PIN during the test.
Test with the NO-GO gauge. The "NO-GO" gauge is the beginning of something bad that could happen and the bolt should not close and lock on the "NO-GO". I've seen many guns that seem to work OK if the headspace is A LITTLE excessive. When the headspace is too tight, the bolt rollers don't lock the bolt to the barrel. This results in a ruptured cartridge.
Also remember if you have a MG 3 barrel it is chambered in 7.62mm NATO.
The winchester .308 is not the same headspace as 7.62 NATO.
Well, from the looks of what Russia is doing to Ukraine, the gun dealer in Poland better get the MG42 fixed very soon.