My MK13 Mod 5 Build

USMCsean

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Feb 22, 2014
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The intermediate height of 1.265" was specifically developed so the 56mm objective housing of the Nightforce scopes would fit into the relief cut of the MARS rail.
 

mallen45

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Mar 29, 2020
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Receiver came back from the smith yesterday. He refinished and blueprinted the action and it looks fantastic. He took some before pictures and showed me that it looked like someone had started to blueprint it before and never got it done all of the way. It was only making contact on the top, so I'm glad I got it squared away.

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Runnineh

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Aug 5, 2018
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So I've been seeing an increasing number of clone builders discussing MK13 Mod 5 variations and one of the more interesting ones is the variations in the action. The Remington 700 was first and that's readily accessible for about 400 bucks anywhere you can think of. Then there's the Stiller action on their website with MK13 branding and all the beautiful trueing and care you can think of for a much less frugal $1545. This is all fine and well as long as its worth it. What are some of yall's experiences with Stiller's actions? Would you say it'll outperform the Remington 700 action if the Remington action got a proper fit and true from the smith?
I've got 2 Stiller actions, a tac30 and tac338 and love them. I have shot the mk13 with stillers action and it's really smooth.
 

mallen45

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I've got 2 Stiller actions, a tac30 and tac338 and love them. I have shot the mk13 with stillers action and it's really smooth.
I think some day, when I'm ready to make the jump I want to build a 338, but I have always been partial to the Mcmillan 338 Chris Kyle references in his book. I have the MIRS rail hanging out in the safe for just the project. I may give stiller a shot one of these days. I hear great things about their actions.
 

sierracharlie338

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  • Mar 12, 2013
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    I think some day, when I'm ready to make the jump I want to build a 338, but I have always been partial to the Mcmillan 338 Chris Kyle references in his book. I have the MIRS rail hanging out in the safe for just the project. I may give stiller a shot one of these days. I hear great things about their actions.
    I had a MK13 mod7-ish clone built by Chad at LRI and it was a freaking hammer. Built on a Stiller Tac 300 action. Was very happy with it.

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    shlouf

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    May 1, 2018
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    Were the mod 7s only ever built on stiller actions? I've had an unfired, stamped G6 LA receiver laying around for 10+ years. Been thinking of starting a mod 5, but like the looks of the mod 7 better.
     

    BEJ762

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    Feb 18, 2014
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    To add, the stiller MK13 action has different scope base mounting hole locations to include pins that are much different than a R700. The AI MK13mod7 chassis was designed for the stiller and the scope base will not fit a R700 (mounting locations different). It's the same reason why you see so many go thru the effort of trying to get a MARS rail to fit a stiller.
     
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