Before and After Bore Cleaning

[urbanrifleman]

I'm curious about the marks across the top of the lands. In some places, it looks like they travel at an angle to the land, directly down the bore.

Is the bearing in your cleaning rod working ok? It looks like a brush was dragged in a straight line down the bore instead of following the twist.

Those are from years ago. I probably did that with my old stainless rod 20 years ago before I knew what l was doing.

 

[LAH]

Follow any product with Boretech Eliminator and it's like you never cleaned.

Love the product.

 

[urbanrifleman]

I built this rifle in 1997. Its probably better I didn't clean it back in the day.

 

[mperry]

Another fan of Boretech Eliminator!!

 

[Ccrider]

Keep in mind, I wore a bronze brush out using about 100 strokes BEFORE the FIRST video...

A little JB on a patch would have saved a lot of time and been much more effective.

 

[urbanrifleman]

A little JB on a patch would have saved a lot of time and been much more effective.

Not from my tests. My tests show that JB is minimally effective on baked on hard carbon. It works, but barely.

I used the brush because everyone keeps telling me a bronze brush will remove anything. Which was wrong.

 

[Ccrider]

Not from my tests. My tests show that JB is minimally effective on baked on hard carbon. It works, but barely.

I used the brush because everyone keeps telling me a bronze brush will remove anything. Which was wrong.

I have had good luck with a patch wrapped around a worn brush. And, I have seen no damage, just carbon being removed.

 

[BoydAllen]

What was your exact method for using the Eliminator?

 

[urbanrifleman]

What was your exact method for using the Eliminator?

The Eliminator is just for the copper mostly so it is applied first. Nothing controversial. I shoot a generous amount in the bore guide and push it through with a patch. Let it sit. Repeat. I stop when the patches are no longer blue. This barrel took about 30.

My Brux 6bra only ever shows one tiny dot of blue on the fourth patch after the decoppering agent mud is washed out on the first three

 

[Dgd6mm]

It wasn't fire cracking.

That black stuff is actually on top of the steel. It appears to be carbon layered with copper that basically seems to make that alligator skin that is actually like a crackle paint job.

I've done several barrels this year that looked like this. And once cleaned the steel underneath looked really good.

This happens offend, shooters looking at a carbon build up and believe it to be fire cracking. Time and experience in cleaning abused barrels and putting a borescope to use will teach you a lot.

Don Dunlap

 

[Dusty Stevens]

I bet krieger would love to check that barrel out. Thats the best 4000rd barrel ive ever seen and i look at multiples every day. It is weird to see that damage on the lands

 

[urbanrifleman]

This happens offend, shooters looking at a carbon build up and believe it to be fire cracking. Time and experience in cleaning abused barrels and putting a borescope to use will teach you a lot.

Don Dunlap

This appears to be the absolute truth.

Lots of misinformation about cleaning on the net.

 

[Stan Taylor]

I bet krieger would love to check that barrel out. Thats the best 4000rd barrel ive ever seen and i look at multiples every day. It is weird to see that damage on the lands

Ain't no doubt that's absolutely amazing.

 

[urbanrifleman]

I bet krieger would love to check that barrel out. Thats the best 4000rd barrel ive ever seen and i look at multiples every day. It is weird to see that damage on the lands

I'm quite sure it's because I'm lying...
(That's sarcasm btw, if anyone didn't get it). I

I shot one and half five gallon buckets of brass through this barrel. I never cleaned it much. I wasn't shooting crazy hot loads. Mostly 55 grain practice loads.

 

[urbanrifleman]

I'm sure I damaged the barrel 20 years ago.

Oh I forgot I sold the gun and the owner used it as a pdog gun for several years. I have no idea what he shot through it or how he cleaned it. Maybe he damaged it. I bought it back 10 years ago after he passed away.

It still shoots short range under half minute. Even with the damage. Sometimes smaller.

I'm cleaning it right now after shooting 100 rounds of AR COMP moly 52 smk. I'll post the patches and borescope after I'm done. So far it was just decoppering agent and one blue patch.

I was going to get a Bartlein 7.7 for my 223a bench gun. I'm staying with Kreiger

 

[urbanrifleman]

Here are the patches after 100 rounds of Ar Comp. There are three with carbon and the rest is decoppering agent "mud". No dark blue patches. They look more blue in the pictures I admit, but they are really more grey in person with a blue hue. The only truly blue patch was the first and it was just the center.

 

[urbanrifleman]

I shoot moly. I'm starting to think most of the black left in the barrel after cleaning is the moly. But honestly I don't know. It would make sense that the only thing left after clean patches would be the moly...

Ps: I called David Tubb and he said the remaining black in the lands and in the grooves after my standard cleaning is moly.

 

[BoydAllen]

I shoot moly. I'm starting to think most of the black left in the barrel after cleaning is the moly. But honestly I don't know. It would make sense that the only thing left after clean patches would be the moly...

Hard carbon will show a clean patch, which is the main reason that bore scopes are so important to knowing what the inside of the barrel looks like. Powder fouling can be taken out with solvent and brushes, copper with solvent and patches, but the only way that I know of to take out hard carbon is by using something like IOSSO. Moly can combine with powder fouling. Berger recommended judicious use of something like JB when cleaning barrels in which their moly coated bullets had been used. The propensity to lay down hard carbon varies from barrel to barrel and powder to powder. For instance, one can keep a barrel in which VV133 is used clean with solvent, patches, and bronze brushes alone. It does not seem to lay down hard carbon. Other powders can make quite a bit, and require different cleaning materials and methods.

 

[urbanrifleman]

After
https://drive.google.com/file/d/1AyaZFFQrGAemZ-nmLh1HefMxRoDNmm5h/view?usp=drivesdk

Here is a video after 100 rounds cleaning, with what used to be my standard cleaning method. Eliminator until clear and three patches of abrasive.

After this method, the copper is gone. But the moly is still there (I don't think that's carbon, but I'm guessing). The moly seems to highlight the microscopic fire cracking pattern in the groove.

After this video, I used my NEW method and it went back to looking like the previous AFTER video. Shiny and clean...

 

[Dusty Stevens]

i cleaned a dasher tonite after sitting 2 weeks and shooting 160rds. This is nothing but butch’s and a bronze brush with the first patch a wetter, then brushing, then iosso, then nothing but butchs- no brushing. Pretty much a standard cleaning method for br shooting except skipping the iosso unless you got that many rounds. This barrel has around 2000 rds and has never shot anything but varget. Total time was less than 10mins