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Old October 4, 2014, 07:20 PM   #1
IOwnTheWorld1994
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Join Date: July 24, 2014
Posts: 41
FNH SCAR Question

So is the 7.62x51 NATO Round equivalent to a .308 Winchester? If so, then could I put a .308 in a 7.62? I know that you can put a .223 Remington in a 5.56 because the pressure is much lower but can't put a 5.56 in .223 because the barrel and chamber wouldn't be able to withstand such pressure from the bullet. What's the inconvenient truth on that theory?
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Old October 4, 2014, 07:53 PM   #2
briansmithwins
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Join Date: August 1, 2005
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Generally speaking yes, they are interchangeable.

You can run into problems however. I had a .308 bolt action that required lots of force to close the bolt on mil surplus 762 NATO ammo. I believe both the rifle and ammo were in spec but the ammo was towards the long end and the chamber was towards the short end of tolerance.

BSW
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Old October 5, 2014, 07:43 AM   #3
bikemutt
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Join Date: December 24, 2010
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I had a Browning BLR (lever action rifle) chambered for .308. It would accept and fire 7.62 NATO but extraction was very difficult, I gave up on 7.62 with that rifle.

A SCAR 17 I owned ate anything it was fed.

My Steyr Scout and Kel-Tec RFB eat both rounds, no problem.
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