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Having trouble getting my 7 LRM to shoot

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  #15  
Unread 10-28-2013, 02:22 PM
Silver Member
 
Join Date: Feb 2010
Posts: 138
Re: Having trouble getting my 7 LRM to shoot

I've tried retumbo and H1000, 168, 180 hunters, 180 hybrids and 162 amaxs, seating from .010 to .050 off the lands and charges from 69-72.5 grains.

Nothing shot any better or any worse really.
I've checked the bedding and torqued everything a couple times. I shot it without the brake to see if it was causing anything. Nothing seems to help.
I also don't know why I had to back off of my loads so much compared to everyone elses?

Thanks for the advice everybody. I'm going to mess with it a little more and if nothing changes, its going back to the smith.
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  •   #16  
    Unread 10-28-2013, 02:48 PM
    Bronze Member
     
    Join Date: Sep 2012
    Location: Nova Scotia, Canada
    Posts: 87
    Re: Having trouble getting my 7 LRM to shoot

    I feel your pain. I purchased a new Cooper in 7mm-08. Everything I tried seemed to shoot 1.25" - 2.25". I returned the rifle to Cooper and it had an issue with barrel run out. They rebarreled and rebedded it. I got it back and it still doesn't shoot. Tried the scope on my 300 Win Mag and shot 0.58" and 0.72" four shot groups. That ruled out the scope so it's back to Cooper a second time!
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      #17  
    Unread 10-28-2013, 03:06 PM
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    Join Date: Oct 2008
    Location: Boise, ID
    Posts: 1,422
    Re: Having trouble getting my 7 LRM to shoot

    Then I would try them again into the lands or within a few thousandths of the lands. If everything else on the rifle checks out ok then it's probably a bad barrel. Bad barrels happen. I've had a bunch of bad ones in the last 20+ years. Send the barrel back to Broughton after the smith once overs the rifle.
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      #18  
    Unread 10-28-2013, 03:13 PM
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    Join Date: Feb 2010
    Posts: 138
    Re: Having trouble getting my 7 LRM to shoot

    Thats what I'm thinking too. I was wrong on the barrel, its a bartlein not a broughton.
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      #19  
    Unread 04-10-2014, 06:48 PM
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    Join Date: Nov 2010
    Location: Texas... It's a whole other country
    Posts: 246
    Re: Having trouble getting my 7 LRM to shoot

    Did you work this out?
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      #20  
    Unread 04-10-2014, 08:44 PM
    Silver Member
     
    Join Date: Feb 2010
    Posts: 138
    Re: Having trouble getting my 7 LRM to shoot

    No I never got it going right. I got tired of messing with it and its been sitting ever since. I can't decide wether to put a new barrel on it, or sell it/part it out.
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      #21  
    Unread 04-11-2014, 05:56 AM
    Platinum Member
     
    Join Date: Dec 2005
    Location: Tucson Az
    Posts: 2,024
    Re: Having trouble getting my 7 LRM to shoot

    I hate to say it but if you could put another barrel on it or rechamber the existing one you might be able to figure out why it won't shoot. I am pretty sure a 7 RUM should clean up the chamber without setback.
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