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Posted: 4/15/2007 4:32:39 PM EDT
Needing some ammo for the AR. I have a new RRA 1/9 16" barrel, and a Armalite with a 1/7.

Is a 62 grain round ok for both?

Who has ammo in stock?

THanks..
Link Posted: 4/15/2007 4:35:30 PM EDT
[Last Edit: 4/15/2007 4:36:06 PM EDT by thedoctors308]
You're all set to go.
55 grain is also okay for both.
The heavier you go, the faster twist you will need.
Link Posted: 4/15/2007 4:50:08 PM EDT
Most folks has ammo in stock and both 55grn and 62 grain will or should shoot fine in both guns,Now the question is how much you willing to pay for ammo?
Link Posted: 4/15/2007 4:59:51 PM EDT
Hey "Willobend"

Ammo is kind of like gasoline. When people ask me if it is it too expensive. My answer is "I JUST HOPE THEY KEEP MAKIN' IT"!!
Link Posted: 4/15/2007 5:07:41 PM EDT
Link Posted: 4/15/2007 7:01:39 PM EDT
62gr FMJ will work fine in a 1/12 twist

now a 62 gr ss109 thats Longer Bullet and needs a 1/9 or etc
Link Posted: 4/15/2007 9:55:22 PM EDT
[Last Edit: 4/15/2007 9:57:54 PM EDT by Tromatic]

Originally Posted By Zhukov:
Please read the ammo FAQ tacked to the top of the page.


Never mind.
Link Posted: 4/15/2007 9:59:33 PM EDT
[Last Edit: 4/15/2007 10:00:53 PM EDT by Tromatic]

Originally Posted By FMJ:
62gr FMJ will work fine in a 1/12 twist

now a 62 gr ss109 thats Longer Bullet and needs a 1/9 or etc


Well, since he asked about a 1/9 and 1/7, what are you talking about?
Link Posted: 4/15/2007 10:19:57 PM EDT

Originally Posted By Tromatic:

Originally Posted By FMJ:
62gr FMJ will work fine in a 1/12 twist

now a 62 gr ss109 thats Longer Bullet and needs a 1/9 or etc


Well, since he asked about a 1/9 and 1/7, what are you talking about?


The SS109 is a longer bullet due to the steel insert. Steel is less dense than lead, which is why this bullet is longer. Longer bullets need a faster twist, so it's probably not going to work as well in a 1/12 as it will in a 1/9 or faster.
Link Posted: 4/16/2007 8:40:07 AM EDT
1/9 will get u to 69 grain
Link Posted: 4/20/2007 2:52:28 PM EDT
My service M16A2 is a 1/7 twist shooting SS109 rounds.
Link Posted: 4/20/2007 2:57:47 PM EDT

Originally Posted By graywolf:
1/9 will get u to 69 grain


I would say 69 easily but some barrels can go higher/longer. I really see no point in having anything other than a 1/7.
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