Matador’s barrel, bending upward.
Hello, my nick name is Marco from JAPAN. I have waited EDgun Matador for a few years, and have been a big fan of it since last year.
There are little more than 10 Matador owners in Japan now. I appreciate this informative forum and hope we will be able to enjoy it with you all.
Well, one of my friend needs help. His barrel is bending to the upward, and it is to the level that the muzzle hole can not be seen as round from breach side.
I will explain situation.
On Delivery.
Barrel was bending upward.
Accuracy was OK. One hole at 50m.
He tried.
He took off the barrel. The barrel seems to be strait by itself.
He assembled with the shroud tube 45 degrees and torqued up the barrel and see what happens, and the barrel bends up.
He repeated this, but no matter if it is 45 deg or 90 deg…. 360 deg… the barrel always bend upward.
Accuracy before the barrel bending upward: approx 50mm at 50m. This is not Matador’s accuracy.
If more torque, barrel starts bending upward.
Accuracy: Seemed to get better in accordance to the torque he applied.
If torqued up, it shows one hole accuracy.
He prefers to have the barrel strait, not because of the accuracy issue, but because he just prefers it.
So, any help is appreciated.
P.S. It might take some time to respond, because I need to tell him what he should try remotely, and wait his for his trial and result.
If that happens, I appreciate for a little bit of patience. Thank you!
Marco
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https://vimeo.com/122263544
https://vimeo.com/122263586
https://vimeo.com/122263633
Sniperqty AirGun
Very good. Do yo uhave the same for the hammer forged Cricket (CZ) barrels?
Sniperqty AirGun
Whomever tightened that so much should have their tools taken away. :angrymob:
Hello, Synopys
It was not when the gun was reassembled. It was like that when the gun was delivered.
Thank you. It is 0.25 Long. I will try to get some picture from my friend.
Marco
Looks like someone over tightened the shroud base nut when it was reassembled. 😯 😯 😯 😯
Whomever tightened that so much should have their tools taken away. :angrymob:
Marco,
Thanks for the picture and your kind words!
Your problem.
I have not seen this before.
Is it possible to show us a picture of the gun side ways?
Perhaps then it would give an impresion of where the bending starts.
By the amount of bending shown in your picture, the shroud should be pointing up quite a bit.
It is not clear to see the bending is at one place or spread out over the whole barrel.
It seems to take place in the second half of the barrel, in the shroud.
What kind of edgun is it? a .22 long?
Regards, Robert.
Edit:
Crosscheck:
Is it perhaps possible to mount this shroud, in- and excluding the same baffle nut, on an other edgun?
One more item to consider when checking out the gun. It occurred to me that the breech block housing that the breach end of the barrel screws into may not be aligned properly. If that channel that the barrel slides into is slightly off the shroud will bend the barrel when you tighten it down. An easy way to check this would be to compare the alignment of the barrel with the air tube with the shroud off of the gun. They should be parallel.
Hello, Huntjunky.
Well, I have consulted with Ed, and he says it does nothing to do with accuracy and stability, and in fact, the gun is accurate and stable. So, it is not gun’s accuracy and stability issue. Ed says he also tried to figure out, but he could not.
Although my friend knows that it did not effect the accuracy and stability, he still wants strait barrel, and I can understand it. So, I want to help him.
Actually, it was disassembled some times, and shroud was rotated 45 deg, 90deg and so on when he assembled it. Whatever the angle was, the barrel bended up. I guess it means it is not the problem of the shroud. I will ask my friend to disassemble it once again, and do detail inspection.
Thank you.
I assume the gun is new…can’t you just send it back and get a new one? Clearly a warranty covered defect.
That picture helps a lot. Clearly something is wrong. Others on this forum can give you better advice than me. The good news is that it could only be a few things and it is likely a fix is easy. I would disassemble the shroud and inspect all the parts. An educated guess is the shroud was not cut at a 90 degree angle. Other possibilities include the retaining bolt or the alighment disk on the muzzle end of the shroud are mis-shaped or not assembled correctly. What ever the problem is it is likely to be obvious upon close inspection. When you figure it out others on this forum will advise on how best to fix it.
Regards, Robert.
Hello, Veerkracht.
I have seen your records in 100m shooting! Impressive! Thank you for your response.
This is the picture.
Lower side, you can see rifling from breach to the muzzle.
On the other hand, Upper side, you can see the rifling from the breach to the middle of the barrel, but you can not see the rifling from the middle to the muzzle, because the barrel is bending up.
And also, you can not see top side of the muzzle hole. What you see actually is the rifling in the middle of the barrel.
Thank you.
Hello, Strietwise.
Thank you for your response. The point of impact shifts up, and is is up to to the level that exceeds elevation adjustment of the scope. But what I meant here is actual bending of the barrel. The barrel is not strait. I have seem many or most of the posts. Is the fixes about bending the rail? or turning the shroud tube?
Thank you.
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Barrel cz processor and clean
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