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copper killer ?? ??? ??

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Unread 08-03-2009, 06:33 PM
Silver Member
Join Date: Nov 2008
Location: Rock Hill, SC
Posts: 189
copper killer ?? ??? ??

Bought a bottle of Montana Extreme Copper Killer. After getting home I notice just below the name are the words "50 BMG special formula". Is this suitable for my 270?
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    Unread 08-03-2009, 08:09 PM
    Platinum Member
    Join Date: Dec 2001
    Location: Potters Hill, NC
    Posts: 1,691
    Re: copper killer ?? ??? ??

    I use it on my rifles (.243/7Mag/.300WM) and it doesn't hurt them. I do not leave it in the barrel for any length of time though. It is strong stuff. Do not take a big whiff of it - it will take your breathe away.
    After using it on my 700P (chrome moly) barrel and I know I'm not gonna shoot it for a few days, I run a saturated oil patch (Kroil/Marvels Mystery oil) through it and then dry patch that out. I usually clean just prior to shooting.
    I have been using Copper Killer for about 2 yrs now and have noticied no decline in barrel life or accuracy. It will get the copper out.
    I also use another of their products; Bore Solvent and it gets carbon and powder residue out great. After about 3 wet patches, with 1 dry patch after each of those, I don't have alot of anything in the barrel. So then when I hit it with the Copper Killer I don't see alot of copper residue on the patches. JohnnyK.
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    Unread 08-04-2009, 12:07 AM
    Platinum Member
    Join Date: May 2008
    Location: South of Canada and North of Wyoming
    Posts: 6,068
    Re: copper killer ?? ??? ??

    I highly recomend Bore Tech Eliminator and Wipeout. These products are better copper removers than Montana Extreme and will not hurt the barrel no matter how long you leave them in the barrel. Any amonia based cleaner can be harmful to the barrel.

    I use Bore Tech at the range for quick cleaning and Wipeout at home for overnight soakings. Do not use brass jags with Bore Tech. It will eat the brass jags and give you a false copper indication. Use a nickel platted or plastic jag.

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    Unread 08-04-2009, 08:46 AM
    Platinum Member
    Join Date: Jun 2007
    Location: PUEBLO, CO, USA
    Posts: 1,134
    Re: copper killer ?? ??? ??

    Not sure but I think you need a different barrel solvent/cleaner for each calibre.

    NRA Life Member
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    Unread 08-04-2009, 10:31 AM
    Junior Member
    Join Date: Jul 2005
    Location: Dillon, MT
    Posts: 8
    Re: copper killer ?? ??? ??

    We use 2 of KG Industries products named KG-1 Carbon Cleaner and KG-12 Copper Remover in conjunction with Kano Laboratories Kroil Penetrating Oil. We liberally dose the bore after a range session and while still at the range with Kroil and let it soak until we are ready to clean the weapon.

    KG-12 is water not ammonia based and won't etch the bore, and removes copper like nothing we've ever used before.
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