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6/17/2013 4:21:35 PM
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jcsparky
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Posted: 5/9/2012 2:18:01 AM

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anyone tried this ? 24" barrel?
ruger556boy
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Posted: 5/9/2012 2:57:04 AM
Could repute your can. It's more pressure than a 308. Try it if you want but I would reccomend against it.
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GunDisaster
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Posted: 5/9/2012 7:53:05 AM
I've heard it's ok to do that, it's a tough suppressor I'm sure it can handle the 300WM with a 24" barrel. But I wouldn't use a shorter barrel of course. I might even go 26" just to be safe.
dusten
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Posted: 5/9/2012 7:58:03 AM
From an archived thread here: http://www.ar15.com/forums/t_6_20/284533_suppressing_a_300_win_mag.html

Originally Posted By Redtazdog:
from Quickload, midrange bullet at max SAAMI load
300 WM with 24" barrel has muzzle pressure 12,500 to 13,000psi
300 WM with 26" barrel has muzzle pressure 10,800 to 12,000psi

308 with 16" barrel and midrange bullet at max SAAMI load
muzzle pressure 13,000 to 14,000psi
this is more at the higher end of the normal operating range for a 308 can


Based on the fact that AAC says that the SDN-6 is rated down to a 12" 308 here, you shouldn't be anywhere near rupturing the can with a 24" 300 WM.
yamatitan
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Posted: 5/9/2012 6:52:57 PM
The cyclone is rated for it on a 24" barrel. Since the n6 is built better then the cyclone I would think it would be no problem.