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Headspacing for .308

1586 Views 8 Replies 5 Participants Last post by  Tommo
Hi again. My new M1A was headspaced in the factory for 1.634. I read that I can't shoot .308 over 1.633 - is this true? Can I not safely shoot .308 rounds?

Thanks guys.
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m14 head space

I,m glade I saw this post. Someone on the other forum said I can shoot both 308 Win and 762.51 ammo, as my rifle's headspace tag indicates 1.631 so far I have only shot surplus, but I planned on picking up some hunting ammo. So tell me what ya think?
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