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Old 04-25-2013, 04:26 AM   #31
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OK, show us the side of the ammo box.

Is it 5.56, or .223? Because the 1/7 twist rate of the 20"

barrel may cause the lighter .223 bullets to either

break apart, or, AFAIK, start to keyhole at as little as

50 yards.

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Old 04-25-2013, 05:44 AM   #32
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I don't have the box with me. Its at my father in laws house but it is .223 not .5.56

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Old 04-25-2013, 06:08 AM   #33
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What if it was as simple as a small barrel obstruction? The target was hit with sand and the bullet tumbled from its path. Flash suppressors on M-16 very often loaded up with dirt. There would be a "Wack" report and funny smoke.

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Old 04-25-2013, 10:36 AM   #34
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It's kinda rare to find a factory 20" gun with a chrome lined 1 in 7' twist barrel most of them are 1 in 9 I'm really beginning to think this is a mole hill being made into mountain.

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Old 04-25-2013, 02:26 PM   #35
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No there was no sand in or on the gun. It was taken out of its case and placed on the shooters stand. Two bullets were fired through it no problem, it was the third bullet that came apart. If it was sand, I would think the first two bullets would have blown anything out or off the flash suppresor. I thinks its just one of those thing that make you go hmmmm lol

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Old 04-25-2013, 02:57 PM   #36
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Quote:
Originally Posted by Crazycastor View Post
I don't have the box with me. Its at my father in laws house but it is .223 not .5.56
Yeah. See, now the lighter weight bullets in .223 are

not designed to be shot from a 5.56 --1/7 barrel.

Not a mystery, not a problem, the lighter projectile

is simply going to break up after leaving the barrel,

from time to time.
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Old 04-26-2013, 12:56 AM   #37
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Whats concidered a heavy projectile in .223 or 5.56 ?

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Old 04-26-2013, 12:58 AM   #38
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And the gun can shot either .223 or the 5.56. Whats the difference between the two?

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Old 04-26-2013, 03:13 PM   #39
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Quote:
Originally Posted by Crazycastor View Post
Whats concidered a heavy projectile in .223 or 5.56 ?
Usually something in the high 60's grains and up.

1:7 is usually best for the high 70's and up but 60's with premium heavier construction bullets like the Gold Dots works Ok.
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Old 04-26-2013, 03:15 PM   #40
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Quote:
Originally Posted by Crazycastor View Post
And the gun can shot either .223 or the 5.56. Whats the difference between the two?
There are small differences between the two and it is usually not recommended that you shoot 5.56 in a gun chambered for .223. What you'll find is that morst people ignore this and manufacturers like Federal in their website mix the two and sell the ammo labeled as 5.56/.223.
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