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Older Sendero with terrible carbon fouling

 
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  #1  
Old 07-11-2013, 10:53 AM
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Join Date: Jul 2012
Location: North Carolina
Posts: 26
Older Sendero with terrible carbon fouling

I happened upon a mid 90s Remington 700 Sendero in 300 Win Mag at a pawn shop. Since the firing pin was hanging temporarily before firing, I got it for $550. In the end there was some gunk on the firing pin spring. Cleaned it up and no more trigger/firing pin problems. Shooting some factory Hornady 150 gr SSTs, it was shooting .5-.75 MOA at 200 yds. Long story short, everything went south. I ultimately figured out that my problem was a cleaning issue. As long as the gun is clean it shoots. It looks to be more carbon fouling thatn copper though. After 12-20 rounds it wont do better than 2-3 MOA at best.

So my question is should I be happy with what I have and just keep it clean? Or is there something to improve it?
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  #2  
Old 07-11-2013, 03:30 PM
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Join Date: Feb 2011
Location: Cincinnati, Ohio
Posts: 1,876
Re: Older Sendero with terrible carbon fouling

Improve it by getting the barrel scrubbed CLEAN....borescope clean....and that way not only will it shoot tighter groups...it will be easier to clean after a shooting session
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  #3  
Old 07-11-2013, 03:51 PM
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Join Date: Jul 2012
Location: North Carolina
Posts: 26
Re: Older Sendero with terrible carbon fouling

I don't have access to a borescope to check, but I have scrubbed and cleaned with everything imaginable. I have used Montana Extreme, Bore Tech Eliminator, TM Solution, and Wipe Out. Once it fouls it is easy to clean. A couple of strokes with a brush then a couple of wet then dry patches and its good to go again, easy sub MOA. It just fouls again quickly in less than 20 shots.
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  #4  
Old 07-11-2013, 04:27 PM
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Join Date: Nov 2012
Posts: 133
Re: Older Sendero with terrible carbon fouling

JB bore paste and tight patches.I have the same gun and had a fouling issue way back with it.,Not anymore!
The carbon can be a stubborn son of a &^%$#.Get it cleaned out now and don't let it build up again.
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  #5  
Old 07-14-2013, 03:09 PM
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Join Date: May 2009
Location: Maryland
Posts: 17
Re: Older Sendero with terrible carbon fouling

I have never used this but look into it.. Wheeler Engineering Bore Lapping Kit
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  #6  
Old 07-15-2013, 09:40 PM
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Join Date: Jul 2012
Location: North Carolina
Posts: 26
Re: Older Sendero with terrible carbon fouling

I guess I have just been to scared to try JB paste. I have heard it is easy to go to far and start doing more harm than good.
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