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Author Topic: Dark bore fix  (Read 1552 times)

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Offline Lost Oki

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Dark bore fix
« on: December 03, 2010, 03:28:05 PM »
Is there a way to brighten the bore of a rifle.  Rifle shoots like a dream but has a dark bore and I would
like to brighten it up without any damage. 

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Offline james

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Re: Dark bore fix
« Reply #1 on: December 03, 2010, 05:35:29 PM »
After shooting coated bullets I used J&B bore paste to get the shine back.  I don't shoot the moly bullets any more.   
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Offline trotterlg

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Re: Dark bore fix
« Reply #2 on: December 03, 2010, 07:22:09 PM »
Do you think it will be a better rifle if it has a shinny bore?  Think it will shoot better?  It has probably had a dark bore for 50 years and it still shoots good for you, you can only screw it up.  Larry
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Offline Junior1942

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Re: Dark bore fix
« Reply #3 on: December 04, 2010, 01:15:53 AM »
Quote from: trotterlg on December 03, 2010, 07:22:09 PM
Do you think it will be a better rifle if it has a shinny bore?  Think it will shoot better?  It has probably had a dark bore for 50 years and it still shoots good for you, you can only screw it up.  Larry
+ 1 on what Larry said.  More than likely you will end up with a rifle which shoots either worse or much worse. 
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Offline Lost Oki

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Re: Dark bore fix
« Reply #4 on: December 04, 2010, 02:02:56 PM »
Thanks guys, kinda of what I thought but you don't know if you don't ask.  Going back and reviewing the history of the rifle since I bought it.  I think I caused the dark bore.  Its a swedish mauser in 6.5 that I sporterized (no regret) and I had found this article on building a charged wire to remove copper buildup in the bore.  I did my research but not as good as I thought.  I used a solution with ammonia in it along with a wire hooked up to batteries.  Read story after story about how great this was.  Followed all the instructions including neutralizing the solution when you finished.  It was about a year later that I noticed the bore was dark and I could not get a clean patch out of it.  Patch always had a dark gray/green color to it.  May work on it again this weekend using Rusty Duck to clean and scrub.  As far as accuracy...it shoots like the typical swed.....very good.   
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Offline maddogg

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Re: Dark bore fix
« Reply #5 on: December 05, 2010, 05:52:41 AM »
Why fix it if it ain't broke?
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Offline gunnut69

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Re: Dark bore fix
« Reply #6 on: December 07, 2010, 07:56:00 PM »
Normally I'd vote for if it ain't broke don't fix it, but? If there are pits and they are collecting bullet metal then cleaning can help. Steel fur (0000 steel wool) can be used on a wool mop to polish the bore. It doesn't damage the steel but can really polish out the rust. A bit of WD-40 does wonders to help clean away the rust..
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Offline torpedoman

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Re: Dark bore fix
« Reply #7 on: December 08, 2010, 04:31:43 PM »
Quote from: Lost Oki on December 04, 2010, 02:02:56 PM
Thanks guys, kinda of what I thought but you don't know if you don't ask.  Going back and reviewing the history of the rifle since I bought it.  I think I caused the dark bore.  Its a swedish mauser in 6.5 that I sporterized (no regret) and I had found this article on building a charged wire to remove copper buildup in the bore.  I did my research but not as good as I thought.  I used a solution with ammonia in it along with a wire hooked up to batteries.  Read story after story about how great this was.  Followed all the instructions including neutralizing the solution when you finished.  It was about a year later that I noticed the bore was dark and I could not get a clean patch out of it.  Patch always had a dark gray/green color to it.  May work on it again this weekend using Rusty Duck to clean and scrub.  As far as accuracy...it shoots like the typical swed.....very good.   

I made a similar tool and used it on several real sewer pipe barrels including a highly prized 32-20 that had no visible rifling. the tool removed a 100 yrs of lead build up to reveal great rifling and a bright bore.that was several years ago and the bore is still bright. If you are getting green patches you still have a lot of copper in the bore.
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Offline Cornbelt

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Re: Dark bore fix
« Reply #8 on: December 13, 2010, 03:11:12 AM »
OMC "engine tuner" is a good solvent for loosening up crud. A cork in the bore and a 24 hr soak sometimes does wonders.
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