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January 13, 2013
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I doubt anyone on this forum knows me, but I have built quite a few crazy guns in my time and plan to whip up an AR-15 or AK in .414 Supermag. I have built 100's of AR's in many different large bore calibers including .44 Rem Mag, as well as AK's in .444 Marlin and .375JDJ.
I am fairly confident I can pull off a .414 Supermag on the AR platform. I plan to use the same bolt and barrel design that I used on the 44 Rem Mags back in 2000, but instead of using re-configured 44 Desert Eagle magazines, I will use a DE .41 magazine, section it lengthwise and stretch it to fit the longer supermag case.
Another option is to take a Saiga-410 shotgun and rebarrel it to .41 SM. Those are already set up to feed a rimmed case, albeit the larger 444 case. Either way, I'll figure something out.
Tony Rumore
Tromix
August 28, 2009
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Sounds like quite a project you have going. Post up some pics. during the build process!
Dans Club
DWF Supporters
April 20, 2010
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Now that will be a unique project! Like Harly said we would love to see pics of this build and give us updates on it. Several 414 Supermag lovers here on the forum.
-Lonwolf
"The lion and the tiger may be more powerful, but the Wolf does not perform in the circus"
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Moderators
January 24, 2009
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Sounds like a cool project, let us know how it works out.
February 11, 2010
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You got my attention Tony ! what would be a price point for the beast ?
-Blacktop
November 14, 2012
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I know of you Tony. The Saiga man!
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January 13, 2013
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It will take some time to get a chamber reamer and barrel blank, but once that is in hand, it shouldn't take more than a day to build it.
Anyone know the barrel twist on the .414 pistol? I'll probably slow it down around 1:25 for the rifle though.
When I was building AR's in .44 Auto Mag, .44 Rem Mag, and 440 Corbon, they shot best with a 1:25 - 1:38 twist. 1:38 was just a hair too slow for some 300 grain bullets though.
Tony Rumore
Tromix
November 23, 2008
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Greetings
Have been shooting a 414 SM in a converted Marlin/ Glenfield 336 for some months now.
A 255 grain Ranch Dog GC can be pushed to 1950+ fps cronographed with a healthy dose of 1680. I seat to the first grease groove as that cycles best in the 336 action. Also picks up another bit of case capacity.
Had not considered an AR in 414 SM. Has a nice thought to it.
Mike in ILL 
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Dans Club
February 22, 2009
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This could be cool; patiently waiting...
Technically, the glass is always full; half liquid, half air....
March 15, 2011
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Looking forward to your project results. I look forlonly to converting single shot rifles for this cartridge as I gave up long ago ever having a 7414 grace my collection. DW41F.
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