Barrel diameters for 12th model

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SaturationTech
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Posts: 4
Joined: Wed Sep 23, 2009 7:37 am

Barrel diameters for 12th model

Post by SaturationTech » Mon Jan 21, 2013 12:08 am

Picked up a 12th model in .223 and love it, so now I'm considering one in .308. Current plans are for (an as yet unbuilt) 7.62x40WT and an AR-10 in one of the 6.5mm cartridges as well as having my Remington 700 .308 (5R barrel) reprofiled for the brake/collar. What kind of minimum diameter is needed to properly machine the step for the collar? The 7.62x40 WT barrel has a diameter of .740 in front of the gas block, the AR-10 barrel is as yet undertermined, and I don't have access to my 700 for measurements.

Thanks for the help.

Matt.Cross
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Joined: Mon Jun 17, 2013 10:37 pm

Re: Barrel diameters for 12th model

Post by Matt.Cross » Mon Jun 17, 2013 10:58 pm

SaturationTech wrote:What kind of minimum diameter is needed to properly machine the step for the collar?

Thanks for the help.

You need a minimum barrel diameter of .920" according to my info from Ops Inc.

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