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Peracetic acid for de-leading gun barrels #4666363
02/15/18 12:27 AM
02/15/18 12:27 AM
Joined: Aug 2008
Posts: 3,150
USA
Reddy45 Offline OP
Reddy45  Offline OP
Joined: Aug 2008
Posts: 3,150
USA
This stuff works so good it should be illegal. LOL.

You plug the end of the barrel, and then pour in a 50/50 mixture of hydrogen peroxide and vinegar. The chemical reaction literally breaks the lead into chunks that fall off.

YES the byproduct is lead acetate and is hazardous!
YES you should only do this if you are capable of being responsible about it and disposing of it properly.
YES this is not recommended for blued firearms or any collectible with a delicate finish.

YES it works better than anything I've tried to get out stubborn lead from shooting moly reloads.

Luckily, I only needed it after I shot the last of my cast lead bullets. I'm sticking with FMJ from now on.

Re: Peracetic acid for de-leading gun barrels [Re: Reddy45] #4666375
02/15/18 01:08 AM
02/15/18 01:08 AM
Joined: May 2010
Posts: 287
Alaska
AlaskaMike Offline
AlaskaMike  Offline
Joined: May 2010
Posts: 287
Alaska
Do you know what caused the barrel leading?

What type of firearm was it?

Re: Peracetic acid for de-leading gun barrels [Re: Reddy45] #4666378
02/15/18 01:18 AM
02/15/18 01:18 AM
Joined: Aug 2008
Posts: 3,150
USA
Reddy45 Offline OP
Reddy45  Offline OP
Joined: Aug 2008
Posts: 3,150
USA
Probably my choice of powder. 8.0 grains of Alliant Power Pistol behind a 185gr SWC cast lead with a moly coat.

Pretty hot load on top of this combo not being recommended, but it shot fine, and was VERY accurate.

Gun was a S&W M&P 45.

Re: Peracetic acid for de-leading gun barrels [Re: Reddy45] #4666508
02/15/18 08:58 AM
02/15/18 08:58 AM
Joined: Jan 2013
Posts: 1,841
Texas
WyrTwister Offline
WyrTwister  Offline
Joined: Jan 2013
Posts: 1,841
Texas
I think I heard of this method . From what I remember , it is very aggressive and can permanently damage the barrel if used incorrectly . ( For instance , leaving the mix in the barrel too long . )

When I shoot a cast bullet , I try for at least .002" over groove size . Helps a lot .

A cousin powder coats his cast bullets & has made great progress .

If your barrel is leading , I recommend a brass bush , Hoppies & elbow grease .


Wyr
God bless
Re: Peracetic acid for de-leading gun barrels [Re: Reddy45] #4666522
02/15/18 09:12 AM
02/15/18 09:12 AM
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
billt460 Offline
billt460  Offline
Joined: Mar 2015
Posts: 5,142
Glendale, Arizona
Isn't this something similar to what the old Outers "Foul Out", reverse plating gizmo was based on? I know the original 110 Volt powered unit they first put on the market was responsible for trashing several barrels, by transferring barrel steel to the provided anode you put in the barrel if you left it plugged in too long. They later came out with a battery powered unit that was less powerful. They had separate chemicals you had to buy, depending if you wanted to remove lead or copper fouling.

The whole thing used a lot of expensive chemicals that were messy, and leaked everywhere. It ended up to be far more trouble than it was worth. I believe the only way to acquire one now is at a garage sale.

Re: Peracetic acid for de-leading gun barrels [Re: WyrTwister] #4666564
02/15/18 09:56 AM
02/15/18 09:56 AM
Joined: Oct 2009
Posts: 3,208
Wet side WA
JohnnyJohnson Online content
JohnnyJohnson  Online Content
Joined: Oct 2009
Posts: 3,208
Wet side WA
Originally Posted By: WyrTwister
I think I heard of this method . From what I remember , it is very aggressive and can permanently damage the barrel if used incorrectly . ( For instance , leaving the mix in the barrel too long . )

When I shoot a cast bullet , I try for at least .002" over groove size . Helps a lot .

A cousin powder coats his cast bullets & has made great progress .

If your barrel is leading , I recommend a brass bush , Hoppies & elbow grease .


If your barrel is leading you're shooting an alloy that is too soft. I've shot cast for years and never had a leading issue. Stick at brindle hardness 15 (Lyman number 2 Alloy) or higher and if you plan on shooting over 1000 fps go to gas checked bullets. Your sizing lube also comes into some play here.

Years ago when I started casting I tested some cast bullets I had bought with my BH tester some of them were BH 9 and 10. They hadn't given me issues but were used for target loads at 800 fps and slower.

Last edited by JohnnyJohnson; 02/15/18 10:01 AM.

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Re: Peracetic acid for de-leading gun barrels [Re: Reddy45] #4666805
02/15/18 02:05 PM
02/15/18 02:05 PM
Joined: May 2016
Posts: 717
Canada
i_hate_autofraud Offline
i_hate_autofraud  Offline
Joined: May 2016
Posts: 717
Canada
Originally Posted By: Reddy45
This stuff works so good it should be illegal. LOL.

You plug the end of the barrel, and then pour in a 50/50 mixture of hydrogen peroxide and vinegar. The chemical reaction literally breaks the lead into chunks that fall off.

YES the byproduct is lead acetate and is hazardous!
YES you should only do this if you are capable of being responsible about it and disposing of it properly.
YES this is not recommended for blued firearms or any collectible with a delicate finish.

YES it works better than anything I've tried to get out stubborn lead from shooting moly reloads.

Luckily, I only needed it after I shot the last of my cast lead bullets. I'm sticking with FMJ from now on.



How strong does the hydrogen peroxide have to be?

If it's from a drug store it's only 5% concentration..

Would it still work?

Re: Peracetic acid for de-leading gun barrels [Re: Reddy45] #4666922
02/15/18 04:07 PM
02/15/18 04:07 PM
Joined: Jun 2003
Posts: 5,920
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,920
Illinois
You can get 30% acetic acid and 35% hydrogen peroxide off Amazon or ebay.

We use to use these strengths to completely dissolve lead. Will not harm steel.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: Peracetic acid for de-leading gun barrels [Re: i_hate_autofraud] #4666928
02/15/18 04:16 PM
02/15/18 04:16 PM
Joined: Aug 2008
Posts: 3,150
USA
Reddy45 Offline OP
Reddy45  Offline OP
Joined: Aug 2008
Posts: 3,150
USA
Originally Posted By: i_hate_autofraud
Originally Posted By: Reddy45
This stuff works so good it should be illegal. LOL.

You plug the end of the barrel, and then pour in a 50/50 mixture of hydrogen peroxide and vinegar. The chemical reaction literally breaks the lead into chunks that fall off.

YES the byproduct is lead acetate and is hazardous!
YES you should only do this if you are capable of being responsible about it and disposing of it properly.
YES this is not recommended for blued firearms or any collectible with a delicate finish.

YES it works better than anything I've tried to get out stubborn lead from shooting moly reloads.

Luckily, I only needed it after I shot the last of my cast lead bullets. I'm sticking with FMJ from now on.



How strong does the hydrogen peroxide have to be?

If it's from a drug store it's only 5% concentration..

Would it still work?


Yup I used the consumer grade brown bottle -- so around 5%. Vinegar was white cooking vinegar by Heinz.

If the leading is visibly built up, I'd leave the solution soaking for 10..maybe 15 minutes before dumping it and flushing with water.


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