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Introducing "Checkmate"

 
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  #1  
Old 07-20-2013, 11:25 PM
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Join Date: May 2009
Location: Carey, Idaho
Posts: 1,016
Introducing "Checkmate"

She started out as a 340 weatherby accumark, left hand, of course. But since I could not get it to shoot better than an inch and the fact that I already have a 338 ultra and a 338 edge, I decided to turn her into a 300 winny. After some consultation with "The Broz," this is what she ended up to be and designed from the ground up to shoot a 215 berger. .
-----300 win mag built on a 340 accumark platform
-----28" broughton 5c 4.1 contour barrel
-----Terry Miller muzzlebrake
-----timney trigger set to a pound
-----murphy precision 20 moa rail
-----nightforce 5.5 x 22 moar 50mm
-----flatline ops level
-----all gunsmithing done by Terry Miller of Twin Falls, Idaho.
Now, the really nice feature of going from a 340 to a win mag is that I can load the win mag with a 215 berger to 3.720 and still fit in the magazine with just the boat tail into the powder area.
Today was the first day in shooting the girl and she has some promise. I shot a total of 5 groups--15 rounds--and managed to get it under half moa. Best group was 73 grains H1000, rws brass, fed 215M, COAL 3.640. I could not chrony as my POS CED would not work. That magneto may be on the horizon...........
I have always wanted to name a rifle after my previous units motto/sniper patch.
Checkmate---the end.

Randy
Attached Thumbnails - Click to View Larger
Introducing "Checkmate"-winny-008.jpg   Introducing "Checkmate"-winny-012.jpg  

Introducing "Checkmate"-winny-009.jpg   Introducing "Checkmate"-winny-011.jpg  

Introducing "Checkmate"-winny-014.jpg   Introducing "Checkmate"-checkmate-009.jpg  

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  #2  
Old 07-20-2013, 11:32 PM
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Join Date: Jan 2011
Location: Spokane, WA
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Re: Introducing "Checkmate"

Other than they put the bolt in a strange place it looks real usable.
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  #3  
Old 07-21-2013, 01:13 AM
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Join Date: Jul 2010
Location: Rathdrum Idaho
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Re: Introducing "Checkmate"

nice job looks great.
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  #4  
Old 07-21-2013, 06:33 AM
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Join Date: Jul 2006
Location: Harrisburg, PA
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Re: Introducing "Checkmate"

Very nice Randy~ Love the name!
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  #5  
Old 07-21-2013, 11:08 AM
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Join Date: Feb 2007
Location: Townsend, Montana.
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Re: Introducing "Checkmate"

I can see you have a start to a great relationship with this rifle. It is an awesome build and I bet your love only grows for her. There are few things a good 300 win will not do.

Jeff
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Old 07-21-2013, 11:22 AM
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Location: SW Montana
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Re: Introducing "Checkmate"

Very nice and it looks like load development will not take much!
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  #7  
Old 07-22-2013, 01:36 PM
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Join Date: Aug 2009
Location: Rigby, Idaho
Posts: 181
Re: Introducing "Checkmate"

Very nice build! It looks like it will be fun to shoot. Let us know what your velocity is if you get a chronograph. I'm building a 300 win and will be using RWS brass also.
Jon
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