Dewey rod stuck (& removed)...left nylon in barrel

[vonb]

I was cleaning up my WOA barrel on my AR15 today when it became (very) stuck about 1 inch from the muzzle. After trying to pull it backwards with no resolution, I resorted to a rubber mallet and hitting vice grips on the end of the rod. This allow me to move the rod backwards from the muzzle.


However, after removing the rod, I noticed I had a thick layer of black gunk on the lands about 1-2" from the muzzle. In looking at the rod, it appears the coating sheared from the rod and was left in the barrel. I have tried scrubbing it with Butch's Bore Shine and a brass brush and it's not cutting it. When running a patch down this area, it feel rough. This is past the DI hole which I have felt it grab a patch as well.


What can I used to chemically remove the nylon from the lands? Also, will this bulge my barrel if I shoot it or will it swage the bullet?

 

[jkohler]

Problem with nylon is it has very good chemical resistance. Most thing that will dissolve it wouldn't be good on the barrel either. I know chlorine will eat it and some acids also Iodine will eat it.

 

[br1111]

Problem with nylon is it has very good chemical resistance. Most thing that will dissolve it wouldn't be good on the barrel either. I know chlorine will eat it and some acids.

 

[br1111]

when I reieved my last dewey rod from midway, there was a warning paper in it not to use t-m solution from tm stockworks. it said that solvent will attack the coating on the rod. I don't know if it would dissolve it, but it might loosen it so that it would push out the barrel.

 

[hogpatrol]

Try some JB bore paste.

 

[Kermit in Va.]

Maybe PB Blaster...


Kermit

 

[vonb]

I have tried Butch's Bore shine, Gunslick Foaming Bore cleaner and Eezox. I Have also used a Dewey bronze brush with these chemicals. None of these items have made a dent. The lands with the naked eye appear to be twice the height as they originally were towards the edge of the muzzle. What should have been a 30 min cleaning job turned into a chore today. So frustrated right now....It's why I prefer bolt actions. ARs have far too many parts for me to play with.

 

[AckleymanII]

I have tried Butch's Bore shine, Gunslick Foaming Bore cleaner and Eezox. I Have also used a Dewey bronze brush with these chemicals. None of these items have made a dent. The lands with the naked eye appear to be twice the height as they originally were towards the edge of the muzzle. What should have been a 30 min cleaning job turned into a chore today. So frustrated right now....It's why I prefer bolt actions. ARs have far too many parts for me to play with.

+1

 

[BillPa]

What can I used to chemically remove the nylon from the lands?

Tom Merideth's TM Solution for one. Don't ask me how I know! I can't say about the X-Treme.

Be Aware: TM Solution by Sinclair International and Montana X-Treme Solutions have been found to attack the nylon coating of our coated rods. We strongly recommend not using these solutions with our coated rods.

http://item.brownells.com/brands/tm-solutions/bore-cleaner-bore-cleaner-16-oz.htm

Bill

 

[Ned Ludd]

Nylon is sparingly soluble in the organic compounds such as phenol and related compounds such as m-cresol and xylenols. It may also be soluble in hexafluoroisopropanol (HFIP) and dimethylformamide (DMF). These compounds can act as weak acids in addition to organic solvents, although phenol is generally a solid at room temperature. You may have two main issues with any of these compounds. First, although I think you might get away with using m-cresol, xylenol, or DMF without damaging the inside of your barrel, I'm not sure how easily you can find these compounds outside of a laboratory or chemical supplier. Even if you can, it is not as though nylon will dissolve in any of them like table salt or sugar dissolves in water. My guess is that it would be more akin to a slow softening of the nylon after soaking a certain amount of time. It might take repeated applications to remove the majority of the material. If you have access to any of these solvents, it may be worth a shot, but be careful because they are pretty nasty as organic solvents go. For sure you don't want to get them on your skin; I would even suggest double-, or triple-gloving in the event you can find any of them, along with appropriate eye protection and some type of long-sleeved smock, etc. I've worked with a few of these solvents in the lab in the past and they're really not pleasant to work with.

My other suggestion would to contact your gunsmith, or find one in the area if you don't already have one. There may be a simpler mechanical means of removing the material as opposed to using one of these solvents. In either case, don't do anything foolish because a barrel isn't really worth it, even if you end up having to replace it. It's only money.

 

[GrocMax]

Nylon is a low temperature plastic, oven at 200-250 degrees would really soften it so maybe a bronze brush would grab it.

 

[deepwater]

Wait until Monday and contact Dewey.

 

[nicholst55]

Wait until Monday and contact Dewey.

^^This.^^

 

[Jose_Luis_G]

If I were in your shoes, I'd try with Ballistol Kleber.
It is not a solvent, but has the ability to get everywhere due to its high capillarity.
I would place a couple leather cups cut with a .22 case and a gas check, inside the barrel, at the right distance from the muzzle.
The order from breech can be gas check, leather, leather.
Then fill the barrel muzzle with Ballistol and let it soak for some hours, keeping the rifle vertical.
This oil will probably get between the barrel and the nylon, and will loosen the nylon good enough to enable moving it forwards.
The moving attempt should be by tapping a bare rod from breech to muzzle, so that the leather cups and the gas check can act as a broom for the nylon.
This procedure is the least agressive to the barrel, and you don't loose anything with a try.
Just my two cents.

 

[Mike F H]

If I were in your shoes, I'd try with Ballistol Kleber.
It is not a solvent, but has the ability to get everywhere due to its high capillarity.
I would place a couple leather cups cut with a .22 case and a gas check, inside the barrel, at the right distance from the muzzle.
The order from breech can be gas check, leather, leather.
Then fill the barrel muzzle with Ballistol and let it soak for some hours, keeping the rifle vertical.
This oil will probably get between the barrel and the nylon, and will loosen the nylon good enough to enable moving it forwards.
The moving attempt should be by tapping a bare rod from breech to muzzle, so that the leather cups and the gas check can act as a broom for the nylon.
This procedure is the least agressive to the barrel, and you don't loose anything with a try.
Just my two cents.

Amazing,what do you people get up to,have a think about how you managed to expand a cleaning rod so much that the rod coating became coated on the barrel

 

[mikelucas]

Heat the barrel in a oven or a heat gun and soften the nylon and push it out. Good Luck.

 

[hogpatrol]

Put it in a freezer until frozen. The nylon will pop loose.

 

[Uthink Uknow]

Try all of what is suggested here and then grab your smart phone and call Ivy, Dewey, or Pro-Shot and order a stainless steel rod.

 

[Richard Jones]

..... . ARs have far too many parts for me to play with.

What does this have to do with your rod issue? Both platforms have only one barrel.

And what caused the rod issue: Wrong solvent or operator error?

 

[joshb]

I have tried Butch's Bore shine, Gunslick Foaming Bore cleaner and Eezox. I Have also used a Dewey bronze brush with these chemicals. None of these items have made a dent. The lands with the naked eye appear to be twice the height as they originally were towards the edge of the muzzle. What should have been a 30 min cleaning job turned into a chore today. So frustrated right now....It's why I prefer bolt actions. ARs have far too many parts for me to play with.

Well, stuff the wrong rod in any barrel, bolt or semi, and you're asking for trouble. You can heat it, freeze it, scrub it or scrap it. One thing you won't do is forget it!