Q:

Barrel sealing during installation

I was wondering if after a barrel change need to use a kind of sealing method instead of a tight fitting inside the breech.
The metal to metal attachment seems to me very unsatisfactory,because I have the impression that the air pushes the pellet may escape between bronze shim and barrel.

Mods/Machinists

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All I was implying is that you perhaps could have mentioned the gun you were talking about in your first post…

Dude!!!….i own a talon…..to be honest i own 23 air rifles.. 😆

Nevermind…Finally locktite #641 or #638 bearing retainer is the answer.
Also the #640 can do the trick while is Ideal for parts with longer positioning time and likes brass components.
Thanks a lot for any advice given.

Dude.. you’re starting to trip out…

we do not know the answer to your question, it’s not a matter of “airforce” only… it’s a matter of you need to ask this at a place were people know about these guns 😉

… and no that has nothing what so ever to do with an airforce, complete 100% different systems… the airforce line does not have a transfer port, nor dose it have a brass sleeve that was attached to the barrel at one time and needs to be “resealed” to said barrel…. so how dose this pertain to the talons?

Call me crazy but lets say that i am the future founder of a great discovery and now just experiment on the s510 for an air rifle amounting technology.
So…how it would sound if i said that my patent is open to everyone except Talon users?…this is not fair…am i right?
Its all about the “machinist”…not S510..not Talons…every section here,it should becomes an experience not adversity.
However usually i post to “other guns”,but i thing that my subject it is generally addressed and may be useful for Talons too.

By the way…I really discover something important like a universal HDD better than Steves which it ‘s capable only to Mrod…but a broken barrel destroy my plans and i can’t test it…i m a bad lucker..

they do have barrels, just as all air rifles do…. unfortunately the set up on the airforce line is nothing what so ever even close to the 510, and it doesn’t look like there is anyone here that knows about your problem 😉

I thought Talons have barrels too….we are talking about Mods/Machinists…not “Mods/Machinists only for Talons”…s510 may used as an example.

I would tent to think that calling AA and explaining things to them would get you the best answer as how to proceed

Post limited information on a Talon forum… ends up being an Air Arms 😆

Finally dave_424 was right and the s510 parts diagram was wrong at least for the rifle i own.
This is a closer view of my barrel and it is absolutely steel….No o-ring,no brass pieces,nothing except dried glue.

Can someone be more specific about the sealing solution please?

I would tend to think that brass pice os the transfer port for air to enter the barrel from the valve so that hole needs to be lined up with the hole in the bottom of the breach.. also when you removed it you probably dislodged or possibly lost the seal (#7 probably) so you will need to check that as well…

that “varnish” you saw was most likely an epoxy of some sort, I don’t think lock tight will do it for you but I may be wrong about that, I sure someone that knows more about that lock tight can and can’t do will chime in

Ohhhh…god….now i realized what am i done.
I thing that the brass piece in the diagram you just saw me,is originally locktited from the factory on the barrel.
I guess that i pulled hard enought and the piece stays inside the breech so what i m seeing after barrels removing,is a barrel without a brass edge and o-ring #47 hides behind that piece.
Thats the reason i can’t see it.
I had the impression that the barrels brass edge and the brass shim #30 is the same piece.
Well i suppose that a locktite can give the solution but now I’m worried about barrels alignment in ordr to keep my old barrel away from garbage…or forget it and make a new (larger)brass piece for my new barrel blank and after gluing it with a locktite try to machining it by the right dimensions.

here ia a parts diagram I found and took a screen shot of…. looks to me as that brass part is not supposed to be separated from the barrel… kind of like it is pressed, glued or something done in some way from the factory

There isn’t a seal…

This seems to be the same way that my UK AA S410 was done. But at 12 FPE I doubt I would have noticed any escaping air if any.

O-ring grooves could be added to the barrel but not really sure if it would make any difference.

Mount the barrel on the gun, place a piece of tissue where the barrel goes into the breech and fire the gun with a pellet in it, if the tissue is moved by escaping air then there is a leak, by how much the tissue moves you will be able to tell how serious this leak is and weather it needs addressing or not..

Dave

The only o-rings i can see are those i described above and these are placed on the brass part.
To help you understand,imagine that there isn,t a brass piece…..only the breech with an o-ring position around the internal surface.
If i was right the brass piece exist only for accessibility and replacements purpose over the years when the port gets loose or gives you a replacement possibility in order to mod from .22 to .25 replacing the proportional galiber or something….i dont know.
So….what did you expect to see while you are looking through a solid breech?….something like a flange i guess,where barrel limits…..BUT!!!!!!…no o-ring inside.
At least…please beleive me…i m not a blind.
The barrel does not penetrate the brass piece…..just touch it.
In conclusion..brass edge is sealed but what about the space between barrel-brass edge?

Are there O-Rings inside the breech? if so that is your fit.

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