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Stubborn copper fouling? Best cleaner?

18K views 31 replies 14 participants last post by  OhioLefty  
#1 · (Edited)
I recently rescued a nice Glock 26 Gen3 from the shelter and gave it a good home.

After a couple of range trips and thorough cleanings, I've noticed there is some stubborn copper fouling left by the previous owner. It appears the previous owner took very good care of the gun on the outside but lacked the knowledge or discipline to keep the barrel clean or they thought it was clean. It's not really heavy or bad, it is just tough getting that last little bit of copper out.

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I've tried Hoppes #9, Gunslick Foaming Bore Cleaner and Ballistol. I've let each soak for up to 45 minutes and still can't get that last little bit out. I have five (5) other Glocks and I keep all of those barrels free of any copper fouling and know what a "clean" barrel looks like.

(Sorry for the not so good picture, I was trying to balance the gun, add light and snap the shot with my iPhone.)

Anybody have any tricks or suggestions? :confused: Thanks in advance.
 
#3 ·
Hoppes #9 is crap for fouling. It's a decent cleaner, but don't waste your time with it for fouling.
Try Birchwood casey Foaming bore or Sweet's 7.62. Sweets is Killer. Only leave this stuff in as long as they recommend. Any longer and it will eat away at your barrel. It also eats away at the brush you use, so you'll need to buy a new brass brush after this process.

ALSO, run a tuft of 0000 steel wool through the barrel on the end of a jag like you would a patch a few times. This will help scrape the fouling out. PLease do not use a regular "brillo" pad. It must be 0000 steel wool. You can find 0000 steel wool in the paint dept of your hardware store. This will also remove lead fouling from your barrel.

My new 19's barrel looked like this after 50 shots. Think it is the bullets I used. I used Sellior & Bellot 115gr FMJ. The tip has a funny color, the same color as the brass

You think this bullets might cause the barrel to get more dirtier quicker?


View attachment 73834
Giela- kind of a threadjack here but to answer your question, yes. it is quite possible. S&B is great ammo and I don't see the fouling after I put S&B rounds through my Glock but, each batch of ammo is dsifferent.

If you want to discuss this ammo more, please create your own thread. :D

hth
D
 
#8 ·
gkl33 said:
try plugging the barrel after you fill it with FL and then heat and let melt and sit for about 45 mins.turn the barrel while FL is still liq. or use the liq. JMO that I would try.
Fl the CLP is NOT a copper/lead solvent. The copper fouling needs to be removed first before the barrel is heated and FL is put in. FL makes a separate solvent product that works but not that well.

Sometimes going harsh chemical is the only way to go.

D
 
#9 ·
gkl33 said:
try plugging the barrel after you fill it with FL and then heat and let melt and sit for about 45 mins.turn the barrel while FL is still liq. or use the liq. JMO that I would try.
The regular FL is not going to remove any copper, but it will make it shine like a new penny :) it's use is to help keep copper from forming in the barrel.
FL is great stuff, but your still going to need a good copper and lead remover to keep your barrel clean. Have been told that they now make a FL solvent?
 
#10 · (Edited)
Thanks for all the suggestions. I may have to just keep working at it. I seem to be able to get just a little bit more each time I clean the barrel but only the really tough chemical cleaners seem to have any type of effect on it. I did try the Frog Lube solvent but it didn't seem to do anything to the copper.

Giela,

Don't worry about it, I knew where you were coming from. :)
 
#18 ·
As was said. Simpple Green, Soak the barrel for about 3 hours, clean the barrel, wash with water then lightly oil.
Or use something actually designed for cleaning fouling and be done in 20 minutes. ;)

D
 
#20 ·
OhioLefty said:
I have tried some cleaners specifically for copper fouling (see below: Gunsick Pro Foaming Bore Cleaner).

It helped some but not completely, I may have to try several applications.

I'll give the Simple Green a try and see what that does.

Thanks again all.
I would suggest you use cleaners made for firearms.




This break free stuff works really good.
 

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#21 ·
I agree with chuckds, the break free BCF has worked wonders for me. Never tried the gunslick stuff so I can't say how they compare, but the break free has taken out very stubborn copper fouling from my glock barrels
 
#22 ·
I just came back from the range. I'm not sure how to get rid of the fouling in one of the post but I always clean my gun after the range and with the FL that I have been using for awhile I just wiped it down and had very little residue on it, so if I have posted in the wrong spot I'm sorry but this FL is over the top if used correctly. Rock on "Glock"
 
#23 ·
#24 ·
Do you have to remove it right away? Clean it with water, etc?
I use the regular BreakFree CLP as a cleaner, protectant and lubricant, but I have never used the Bore Cleaning Solvent.
Can or should they be used together?
Thanks!
I have always used a separate cleaner for the bore, but know many that just use the CLP and have no issues.
 
#25 ·
Do you have to remove it right away? Clean it with water, etc?
I use the regular BreakFree CLP as a cleaner, protectant and lubricant, but I have never used the Bore Cleaning Solvent.
Can or should they be used together?
Thanks!

There are instructions on the side of the bottle. If it's like other foaming bore cleaners, you give it a few minutes to work and just clean the barrel as before. There shouldn't be a need for water.


I have always used a separate cleaner for the bore, but know many that just use the CLP and have no issues.
Regular CLP is not strong enough to remove stubborn fouling.


HTH
D
 
#26 ·
I believe in cleaning right after I get back from the range but this Glock 26 Gen3 was somewhat neglected or they didn't know what copper fouling was. All my other Glock barrels are spotless.

Good news is, each cleaning with the foaming bore cleaner, I get a little more of the copper fouling out. Hopefully, when I get to the end of the can, the copper fouling will be gone! After that, just normal cleaning.