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World’s Dirtiest Gun

Bought a used rifle with a very dirty barrel. Trying to clean it out and see how it shoots. Proving to be a task.

I've been running patches soaked in Lucas bore solvent through it, with a brass/copper brush every 3rd patch to knock stuff loose. The solvent-soaked patches start dirty but come out clean by the 3rd run. After a pass with the brush, the next patch comes out almost solid black. The cycle goes on - clean by the 3rd patch, brush, then nasty solid black patch. The brush is brand new, so it shouldn't be adding gunk to the mix.

Keep going, or try something different? I've probably had 50 patches down the barrel. Still get a black patch after brushing. I'm not used to cleaning barrels this dirty…
Soak it in some Sweets or similar. May be getting copper tarnish which is very black. If the barrel is as crudded as you say, it's probably full of copper.
 
I used to use Sweets by the bucket until I discovered Wipe-Out, which I would suggest using here. A friend got an old Mosin that probably hadn't been cleaned since being dug up in a field someplace and three Wipe-Out treatments had the bore shiny clean.
 
I used to use Sweets by the bucket until I discovered Wipe-Out, which I would suggest using here. A friend got an old Mosin that probably hadn't been cleaned since being dug up in a field someplace and three Wipe-Out treatments had the bore shiny clean.
This is exactly my experience and the product I use. It always works for me.
 
The iosso should clean it right up. I have a 28 Nosler that I use R33 in and it gets real dirty. I tried everything and nothing touched the carbon ring until I used iosso. The bore scope will let you know when it clean. Make sure you work on the neck area of the chamber and throat also.
 
The iosso should clean it right up. I have a 28 Nosler that I use R33 in and it gets real dirty. I tried everything and nothing touched the carbon ring until I used iosso. The bore scope will let you know when it clean. Make sure you work on the neck area of the chamber and throat also.
Are Iosso and JB paste similar products relative to abrasiveness?
 
Thanks all. Bought some wipe out, iosso, and nylon brushes. Then I decided to quit screwing around and bought a bore scope so I can actually tell what's going on.

If that doesn't work, I'll just shred all my money and pour it down the barrel. Seems to be the general method so far…
Now that's funny. I only say it because I'm pretty sure we've all been there. Cost savings are always on the mind, but it seems we go through life over-paying for the things we are passionate about. You are not alone my friend!

I for one, seem to buy other people's mistakes at good prices only to have them become my mistakes. Hang in there.
 
Here's a photo of the bore after the previously mentioned cleaning with Lucas bore cleaner and patches/brushes. Still copper on the lands. Trying wipe-out next.
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After a scrub with Isso and another 8-hour soak with wipe-out
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Looked pretty clean so I took it to the range. Still not quite where I want it. Was shooting 3-4 moa before cleaning. Now it's more like 1.5 moa. This should definitely be a sub-moa gun.

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First patch out of the barrel after the 4 rounds above. Wow, that's a lot of crud. Probably mostly from the muzzle brake though.


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That barrel should look shiny after iosso. You may need to do it a few times. What was your cleaning regime with it?
 
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