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Introducing "Checkmate"

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Unread 07-20-2013, 11:25 PM
Platinum Member
Join Date: May 2009
Location: Sweet, Idaho
Posts: 1,135
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.

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  

"Every man has a purpose---------mine is to be behind a rifle.........."

"I'd rather wake up in the middle of nowhere than be in any city on earth." ---Steve McQueen
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Unread 07-20-2013, 11:32 PM
Platinum Member
Join Date: Jan 2011
Location: Spokane, WA
Posts: 3,941
Re: Introducing "Checkmate"

Other than they put the bolt in a strange place it looks real usable.
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Unread 07-21-2013, 01:13 AM
Gold Member
Join Date: Jul 2010
Location: Rathdrum Idaho
Posts: 572
Re: Introducing "Checkmate"

nice job looks great.
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Unread 07-21-2013, 06:33 AM
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Join Date: Jul 2006
Location: Harrisburg, PA
Posts: 2,759
Re: Introducing "Checkmate"

Very nice Randy~ Love the name!

"Character is who you are when nobody is watching"
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Unread 07-21-2013, 11:08 AM
Platinum Member
Join Date: Feb 2007
Location: Townsend, Montana.
Posts: 8,644
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.

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Unread 07-21-2013, 11:22 AM
Platinum Member
Join Date: Nov 2008
Location: SW Montana
Posts: 5,770
Re: Introducing "Checkmate"

Very nice and it looks like load development will not take much!
"Pain is weakness leaving your body"
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Unread 07-22-2013, 01:36 PM
Silver Member
Join Date: Aug 2009
Location: Rigby, Idaho
Posts: 274
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.
Live to Hunt
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