Superior liner and CF sleeve installation questions..

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MACTEN

MACTEN

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Nov 18, 2020
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Just got the sleeve for the .25 600mm superior liner but what I have doesn't seem to match the ER videos. It seems I don't have a muzzle end jam nut or I wasn't able to get it off the end of the (what I call shroud) and others call barrel. The 1/2 threaded end piece seems locktited on pretty good. Do I have to get it off to complete the install? The shroud slides very easily onto the liner so I assume epoxy will be needed if I can get the muzzle end jam nut situation clarified. Thanks for any advice!
 
Yes the metal piece in front of the brass with the transfer ports are locktited in place, in my case so bad i ruined the brass transfer port as i had to use that much force,,,,, even if i had also heated up the damn thing to where i was getting nervous it was too hot.

Did get the thing off and thankfully the reason i took that apart was to install a dual hole transfer port as .177 barrels do not have both

Like douger say i did not locktite again there as i see no reason to do that either, if anything i would put on a little plumbers tape to make the thread fit tighter, but so far in months of shooting and removing of barrel to clean it i have encountered 0 problems.
 
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Does this thing even have a jam nut at all? I unscrewed the shroud and the end of the liner (barrel) has nothing on it at all? Is the nut stuck at the muzzle end or does the new Dreamline even use a jam nut on the muzzle end of the liner?

IMG_1767.JPG
 
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Been trying to find a picture of the newer Dreamline with the barrel out and can't seem to. Maybe the liner is free floated with the o-rings?
EDIT: There isn't a jam nut or liner lock as FX calls it in this new rifle. There is a gap between the end of the liner and the thinner area at the muzzle. It appears the o-rings keep it centered in the barrel instead of the jam nut I keep seeing. (even in the parts diagram) but not this new Dreamline I guess. I realized that I can use 1 o-ring attached at the end of the liner just in front of the cf sleeve to keep the liner centered. Hope that's how these new ones are being made or mine is missing parts.
 
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douger said:
No jam jut just a barrel centering thing on dreamline Hotta be more specific on gun next time
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So what you are saying is on the Dreamline it's just the plastic rings with o-rings on outside? In the FX parts diagram for Dreamline barrel is shows the liner lock. I know mine is .25 and this is .177 (couldn't find diagram for .25) But shouldn't that part be there? I do have what they call compensator .25 which looks like and air stripper.

dreamline barrel.JPG
 
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madeintheuk said:
The longer barreled dreamlines use standard stx barrels. The compacts use a modified version of a superlite barrel similar to the crown, but with a thinner shroud so a bottle can be used.
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Mine came with the standard superior liner of course. What's puzzling is that I can't find a video of anyone taking the 600mm dreamline barrel /liner apart.. At least as of yet.
 
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What are you trying to do? The standard stx liner uses the front jamb nut to hold the liner inside the barrel. The superlite barrels use the shroud as an integral part of the barrel system, and you just unscrew the shroud to gain access to the liner. Then there’s a compression nut that holds the liner into the breech block.
 
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After reading your first post, looks like you have the superlite style system. There’s no true way to use the carbon sleeve on this barrel system without modifying the centering pucks and epoxying the sleeve to the liner. There is no jamb nut on these liners to hold it in place. It basically floats.
 
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MACTEN said:
Does this thing even have a jam nut at all? I unscrewed the shroud and the end of the liner (barrel) has nothing on it at all? Is the nut stuck at the muzzle end or does the new Dreamline even use a jam nut on the muzzle end of the liner?

View attachment 312463
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cut the liner down a bit run to the nut that tightens up to the reciever than run 1 centering device about a inch back from the end of the liner, then tape around each side of the centering part so it dont come off in the shroud when unscrewed its better then those centering things
 
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madeintheuk said:
After reading your first post, looks like you have the superlite style system. There’s no true way to use the carbon sleeve on this barrel system without modifying the centering pucks and epoxying the sleeve to the liner. There is no jamb nut on these liners to hold it in place. It basically floats.
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I have no idea if it's the superlite system. Just doesn't have the parts I see in the diagram for Dreamlines. Makes sense if that's thae way they are. Ordering some o-rings for the outside of the sleeve to barrel, and using one of the ones that came with it on the liner in front of the CF sleeve.. Looks like it will work fine. seems 18x12x3 o-rings will work.
 
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Buckshutr said:
Is the part FX calls the barrel threaded on the inside? That's the part around the liner. If it's threaded on the inside then it is designed for a jam nut.
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On the muzzle end it appears to be threaded and only has the air stripper. The other end is threaded as well. I did figure it out after @madeintheuk mentioned i may have a superlite barrel setup. I found another thread from some time back when they were discussing the superlite and that's what I have. No jam nut and a space (gap) from liner end to stripper (centered in shroud with wagon wheel centering device with o-ring around it's circumference) It was designed to take air rearwards over the liner inside of the shroud. I guess the whole idea was a thinner outer shroud (FX's barrel) to accomidate a CF bottle easier. Either way, after some JB weld and an o-ring to hold that centering wagon wheel on.. I think it's done.. I read that some use spacers in the middle and I might if I have trouble at the range but I think it's going to be stiff enough without that it will likely be fine. I taped the superior sticker onto the outside of the sleeve to remind me what's under there.

IMG_1768.JPG
 
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Bigragu said:
I skipped thru a lot of comments after I saw the pic from the op showing all the typ barrel parts but no liner lock nipple- I hope the liner lock didn’t come off with the shroud, and is buried tight into the threads within the shroud.

If I’m off base then disregard my comments
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Not off base but I found out this barrel is a superlite, which doesn't have the jam nut (liner lock) at all by fX design on the muzzle end for this particular barrel.. just wheels like you see i put on the muzzle end to keep the liner centered. Everything you don't see on the right side is still intact as well just not in the pic. I explained this higher up in the thread.
 
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