I recently cleaned my grandfathers WinM70. I wish I would have taken pictures of the bore. This thing had four solid 1/8" wide lines that were an orange color swirling down the rifling. I haven't seen any kind of fouling like if before. The lines were perfectly uniform. I don't think the barrel had been cleaned too many times before. I used 7.62 on it then Hoppes and it did basically nothing. I knew then I had my work cut out for me. I bought a separate brush just to use the 7.62 with. I don't use copper brushes with 7.62 well because it eats copper for lunch. So I plugged the throat, dripped 7.62 down it, capped the muzzle, and let it soak for about 5 minutes. I pulled out the brush and began to work it with the 7.62 inside. Then I pushed some rags to retrieve the excess until it was clean. Wiped some Hoppes down it, used my good brush with that, and wiped out the rest with some patches. I did this cycle four times and finally got the barrel to nearly 100% clean. Finally finished it off with some Remington lubricant to keep in clean. This took me a nearly 1-½ hours!! Has anyone ran into this kind of fouling? Any other better methods that don’t take as long?
Took 1-1/2 hours to clean the fouling out
- Thread starter blackops
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Ridgerunner665
Member
I've had good luck with Remington 40x bore cleaner...
Some knock it because its mildly abrasive, but its VERY, VERY fine grit and suspended in liquid, not paste.
It works...
Some knock it because its mildly abrasive, but its VERY, VERY fine grit and suspended in liquid, not paste.
It works...
Maj Dad
Member
Montana Extreme
Copper Killer. Developed by 50 BMG shooters for industrial strength copper fouling removal, and I can tell you it works. Lots of ammonia and other pungent chemicals. I don't use it on a routine basis, but on a new used acquisition (especially of the milsurp variety) I start out with it and almost always get a ton of copper fouling out. On my really smooth, well-broken in barrels I tend to use it infrequently, defering to less aggressive solvents like Hoppe's and following with JB Bore Paste & Bore Shine (especially Bore Shine on the really slick bores). I am not convinced that it is necessary to completely eliminate every last Cu molecule from bores. After all, every match includes fouling shots, n'est-ce pas? Six of one, half-dozen of the others...
Copper Killer. Developed by 50 BMG shooters for industrial strength copper fouling removal, and I can tell you it works. Lots of ammonia and other pungent chemicals. I don't use it on a routine basis, but on a new used acquisition (especially of the milsurp variety) I start out with it and almost always get a ton of copper fouling out. On my really smooth, well-broken in barrels I tend to use it infrequently, defering to less aggressive solvents like Hoppe's and following with JB Bore Paste & Bore Shine (especially Bore Shine on the really slick bores). I am not convinced that it is necessary to completely eliminate every last Cu molecule from bores. After all, every match includes fouling shots, n'est-ce pas? Six of one, half-dozen of the others...
mljdeckard
Member
I've used a foamie earplug to cap the end of the barrel, filled it with foaming boresnake, and let it sit muzzle-down for two days.
If it was as bad as you say it is, it sounds like he used corrosive ammo and let it sit for years. You will want to look and see if it is pitted, and consider replacing it.
If it was as bad as you say it is, it sounds like he used corrosive ammo and let it sit for years. You will want to look and see if it is pitted, and consider replacing it.
stubbicatt
Member
I think this sort of thread is a lot like motor oil threads in automotive forums. Everybody has a method that workes for him. And no two methods seem to be alike!
I have found that Mpro7 works great to remove powder fouling and carbon and what have you, and doesn't eat up bore brushes. So this is what I use in my initial cleaning. Once I get no smudges on the dry patches, I will sometimes switch to a more aggressive copper type solvent. Sweets, Butch's, Montana Gold, etc. Generally I'll get some blue patches, but rarely any more black ones.
I have found that Mpro7 works great to remove powder fouling and carbon and what have you, and doesn't eat up bore brushes. So this is what I use in my initial cleaning. Once I get no smudges on the dry patches, I will sometimes switch to a more aggressive copper type solvent. Sweets, Butch's, Montana Gold, etc. Generally I'll get some blue patches, but rarely any more black ones.
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