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Lost accuracy in a 17HMR?

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Unread 01-05-2009, 06:44 PM
Bronze Member
Join Date: Sep 2006
Posts: 72
Re: Lost accuracy in a 17HMR?

Try Patch Out! I use the accelerator too. I just took my .17 Remington from the safe and decided to push a patch down the bore. I always clean my rifles before putting them into the safe. I also run an oiled patch down the bore periodically to protect from rust. I haven't shot this rifle for several years.

I ran a patch with the accelerator followed by one with Patch Out. The amount of powder fouling and copper I removed was unbelieveable. I continued the routine letting the cleaner soak for several hours and sometimes overnight until I got an absolutely clean patch.

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Unread 10-01-2009, 10:45 PM
Silver Member
Join Date: Oct 2009
Posts: 187
Re: Lost accuracy in a 17HMR?

I agree cleaning thouroghly would be a good first step, if that doesnt work try using moly i prefer oil to powder because it doest reduce velocity and doesnt act as a heat sink. i really dont think you shot out your barrel cuz ive put about 5,000 rounds through my .22 wmr and i clean with copper solvent and lube after every trip to the range so about every 500 rds it gets a thorough cleaning, preventative maintenence is as important, or even more than on your car. i havnt seen any decrease in accuracy at all , take a page from the "what we learned in Vietnam" book, every gun needs cleaning
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Unread 10-12-2009, 11:54 PM
Platinum Member
Join Date: Jul 2004
Location: Texas
Posts: 7,236
Re: Lost accuracy in a 17HMR?

I totally agree with everyone about the cleaning.

The 17s velocity is at or below 2600 ft/sec and should last 15,000 to 20,000 rounds
before any accuracy loss with proper cleaning.

I would suspect fouling or stock problems. If the cleaning does not cure the problem I
would recomend re bedding and floating.

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