This Could Get Ugly

[kball]

I was indexing a new superior liner with a CF sleeve and when I went to make the second turn I found that the liner is stuck and will not come out. I have put as much pressure on the liner as I dare and it absolutely will not move. Has anyone ever had this happen? If so, how does one fix this without mussing up a liner or a barrel (or both)? The groups where it is are good so I'll probably leave it where it is especially if the responses I get back are mostly O'Sh*ts. Thanks in advance for any help on this one.

 

[Jlowe]

You may have to do a little more explaining. Did you take out all the rubber O-rings and the sticker first before you attempted to put the carbon fiber sleeve on?

 

[cosmic]

 Did you loosen the barrel retaining set screw.. If tighten it will deform a bit locking the liner in the shroud,,

 

[corny]

If u own or hav access to machinist collet chucks. 
they work wonderful for clamping onto small round parts and working on them. Will never distort the part 

 

[kball]

Yes, the o'rings and sticker were gone. I made one index move with no problem, the second is when it would not move. I also removed the barrel assy from the gun and tried. I know a machinist, I'll see if he has one of the chucks pictured. Thanks for that advice.

 

[Vetmx]

If you didn’t center the CF tube on the liner and leave a nice gap on each end, when you tightened the liner nut you drove the carbon fiber into the transfer port end of the system. Now it’s wedged in there because you essentially pressed it in. You could try a standard drill chuck but don’t get crazy.

 

[coloradochris]

I just indexed my M3 25 cal 700 superior liner with carbon liner I had no problem. The only issue was my point of impact was 7” off poa. The bad was at 3 - 6 & 9 all pulled low & left. As my interest is in long range 150 to 350 I need vertical deviation not horizontal as I feel that’s just going to get worse further out. I have had the Heavy liner on order for over a month. Hopefully this will help 1/18 twists. Love any input thanks Old Guy with a Air Gun.

 

[Rj]

Before going at it with sharp tools...try throwing it in the freezer for a couple hours. Then heat the outer liner with a heat gun.

 

[qball]

Carbon Buber doesn’t really expand or shrink with temp, try leave the barrel out in the sun to get it really warm. Good luck.

 

[MikeVV]

Carbon Buber doesn’t really expand or shrink with temp, try leave the barrel out in the sun to get it really warm. Good luck.

Is that a new material ? Carbon Buber !



Mike