re: Official AR-15 thread

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Actually, people have had more problems with the NATO ammunition. Google.

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Wrong. Quality NATO ammo consistently measures to hold tighter specs than a lot of the low to mid-tier .308 commercial stuff and even better than a lot of the hunting .308 ammo. Start looking at who has feeding, and more importantly, extracting issues with the Sig 716 and you see it's mostly commercial .308

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The point that was trying to be made in that passage was more in recognizing the fact that there is not as much of a difference in the pressure between NATO 7.62 and commercial 308.

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Pressure isn't the issue as much at cartridge OAL and headspacing.

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I seriously doubt SIG is printing manuals that say 308 is fine to shoot while there being an issue with infact shooting 308 out of this rifle.

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I seriously doubt Sig had Barnes Vor-Tx ammo in mind when setting up that rifle. Barnes, like the vast majority of .308 hunting ammo, has OAL's all over the place. Maybe you missed the part where this guy wants to run the Sig for hunting?