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Author Topic: Colt AR15 Upper in 7.62x32 Question?  (Read 1167 times)

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Offline sherppa

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Colt AR15 Upper in 7.62x32 Question?
« on: August 08, 2007, 07:12:12 AM »
Does any one know if Colt AR15, 7.62x39 barrels are .308 or .310?  Has anyone tried .308 bullets?

thanks

sherppa 
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Offline simplicity

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Re: Colt AR15 Upper in 7.62x32 Question?
« Reply #1 on: November 13, 2007, 03:29:22 AM »
get a set of calipers and measure it or use a "T" gage and use a micrometer
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