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Lost accuracy in a 17HMR?

 
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  #1  
Old 12-05-2007, 11:34 PM
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Lost accuracy in a 17HMR?

I was one of the lucky ones who got one of the first Marlin 17V's when they first came out. It's been a few years and a couple of thousands of rounds later, but the accuracy has really been dropping off lately. It started off being a .75 MOA gun at 100 yards, but now it's closer to 3-4 MOA. Now I'm trying to figure out what to do to get the groups back down. The muzzle looks decent, but I might have it re-crowned to see if it helps. If that doesn't help I'm out of ideas. Do I sell it and put the funds towards a newer 17? Should I try contacting Marlin to see if they would re-barrel it? What would you do with a gun that looses it's accuracy? TIA.
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  #2  
Old 12-06-2007, 11:10 AM
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Have you throughly cleaned it... I mean REALLY cleaned it.

Many 17 HMR shooters treat them like 22 rimfires, and the cleaning is almost non-existant.

But these little puppies do copper foul, and it doesn't come out with a lick and a promise.

Use wet patches with copper solvent - don't use brushes.

Keep wet patching, with 30 minutes between them to soak, until the patches come out white.

I doubt that Marlin will re-barrel it, the cost would be as much as a new rifle.

Also... do the regular checks - make sure the scope is tight, stock screws are tight, etc...


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Old 12-08-2007, 04:59 PM
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+1 on Catshooter

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Old 12-09-2007, 01:53 PM
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My 17VSS needs a liberal dose of Sweets 7.62 every now and then to bring it back to snuff.
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  #5  
Old 12-29-2007, 05:10 PM
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I have discovered the same thing as Catshooter is saying.
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  #6  
Old 12-29-2007, 06:21 PM
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17HMR Cleaning

I hired a 17HMR in NZ for rabbit shooting earlier this year.
When we received it the barrel looked like a smooth bore.
It took several hours to remove the fouling and see rifleing again.
About every 100- 200 rounds it required thorough cleaning and accuracy returned. We poked 1100 rounds down at rabbits and were very surprised at the overall performance of this little round acuracywise and quite lethal.
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  #7  
Old 12-30-2008, 10:16 AM
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Re: Lost accuracy in a 17HMR?

Gunslick foaming bore cleaner, the answer to all copper fouling and cleaning problems.
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