7mm rem AR


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beerslurpy
April 19, 2006, 01:01 AM
Is it possible to make a 7mm rem mag AR off what would otherwise be an AR10 platform? Or does the AR10 lower use the same tiny magwell as the AR15 lowers?

edit: oh wait, they use the 300 short magnum in that role. So many magnums, so little storage space for all the ammo.

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Zak Smith
April 19, 2006, 01:44 AM
AR-10 / SR25's use a 308 sized action, including a different lower receiver.

Onmilo
April 19, 2006, 04:59 PM
I think the .270 Winchester Short Magnum can or has been adapted to the AR system.
Getting the pressure curve within reason for the action would be the hardest part to making this work.

rbernie
April 19, 2006, 05:03 PM
Any chambering based on the 308 would theoretically work - 7mm08, 260, 243, etc. The 7mmMag is too long for a 308-length action.

Nightcrawler
April 19, 2006, 05:04 PM
There's a company out there, though I can't remember their name, making semi-custom, modular (interchangable barrels/calibers, I think), long-action AR-15 type rifles (accurized) in .30-06, .300 Win Mag, and even .338. I'm sure they could do one up in 7mm Rem Mag, but you're looking at a couple thousand bucks for the rifle.

Nightcrawler
April 23, 2006, 03:21 PM
The rifle is made by Cobb Manufacuting (http://www.cobb50.com/).

Observe (http://www.cobb50.com/mcr.htm).

They don't have 7mm Remington Magnum listed as an option, but I'm sure they could make one for you. Otherwise, there's .338 Lapua, .30-06, 8mm Mauser, etc.

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