Colt SA15.7 or Colt SA20?

voodoopriest

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So I've always wanted a Colt Canada AR-15 and I figure now is a good time to get one with the rumors of a possible ban. But the question is which one.

I'm trying to decide between the SA15.7 and the SA20. They say the SA15.7 is more accurate but the SA20 is better at "extreme" distances.

So I'm wondering how much more accurate the SA15.7 is over the SA20 and what constitutes "extreme" range?

Edit:
So I decided to get the SA15.7. Thank you for your help everyone. :D
 
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honestly man, i think the biggest thing is whether or not you want the extra 4 or so inches of barrel with a rifle length gas system. Everything else is the same, and you won't get perfect super tight groups from either of them without free floating the handguards anyways. I'd venture a guess that extreme range for the C7/C8 would be somewhere around 600-700 yards.
 
The 20 shoots a little softer, but has a standard gov profile barrel.
The 15.7 has a heavy barrel which is stiffer, and may have slightly better accuracy out to 300.
 
The 20 inch would shoot softer, the accuracy difference is trivial. My first question is what ammo are you gonna be feeding these guns and what optic will you be using?
 
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