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.223 Rem 1-10 twist #7180552 05/26/18 02:40 PM
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Buzzsaw Offline OP
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What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?

In General, I'm sure some will shoot a 80gr accurately, but what's the norm?

Last edited by Buzzsaw; 05/26/18 02:41 PM.

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Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7180580 05/26/18 03:30 PM
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while the weight of the bullet is not the only criteria according to Litz's book you should get stability up to 69gr if you pick the correct bullet say a 69gr Nolser Comp which calls for 1/10.5 twist


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Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7180751 05/26/18 09:28 PM
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Originally Posted By: Buzzsaw
What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?


www.google.com

Type in "Shilen twist rate chart". See what you see.

Remove that search.

Then type in "Lilja twist rate chart". See what you see.


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Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7180787 05/26/18 10:25 PM
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Barrel length will make the difference. 16" problem, 24" probably okay.


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Re: .223 Rem 1-10 twist [Re: J.G.] #7180841 05/26/18 11:54 PM
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Originally Posted By: FiremanJG
Originally Posted By: Buzzsaw
What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?


www.google.com

Type in "Shilen twist rate chart". See what you see.

Remove that search.

Then type in "Lilja twist rate chart". See what you see.


Or go to Berger site and use their twist rate calculator. Can with knowing a little about the bullets weight, lenght and BC plus velocity.

Last edited by kmon1; 05/26/18 11:55 PM.

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Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7181118 05/27/18 02:24 PM
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Originally Posted By: Buzzsaw
What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?

In General, I'm sure some will shoot a 80gr accurately, but what's the norm?


In general, 60-62 grain cup/core would be top end. Moving to a mono you may need to drop a little weight IME.
If you intend to drive them FAST, maybe a 69 could get consistent accuracy.
Can also depend on the individual barrel.

Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7181207 05/27/18 05:18 PM
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Originally Posted By: Buzzsaw
What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?


Buzz, it's not the "heaviest" but the length that determines which bullet. Anything up to about 1.010" bullet length will be stable, but just barely. A bullet length of .880" will be fine for your twist.

http://www.jbmballistics.com/ballistics/lengths/lengths.shtml


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Re: .223 Rem 1-10 twist [Re: ChadTRG42] #7181495 05/28/18 01:10 AM
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Originally Posted By: ChadTRG42
Originally Posted By: Buzzsaw
What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?


Buzz, it's not the "heaviest" but the length that determines which bullet. Anything up to about 1.010" bullet length will be stable, but just barely. A bullet length of .880" will be fine for your twist.

http://www.jbmballistics.com/ballistics/lengths/lengths.shtml


didn't realize this great info


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Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7181541 05/28/18 02:30 AM
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Originally Posted By: Buzzsaw
Originally Posted By: ChadTRG42
Originally Posted By: Buzzsaw
What's the heaviest bullet this 1-10 twist will shoot ACCURATLEY?


Buzz, it's not the "heaviest" but the length that determines which bullet. Anything up to about 1.010" bullet length will be stable, but just barely. A bullet length of .880" will be fine for your twist.

http://www.jbmballistics.com/ballistics/lengths/lengths.shtml


didn't realize this great info


Only been posted about a hunnert times, here. peep


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Re: .223 Rem 1-10 twist [Re: Buzzsaw] #7181548 05/28/18 02:39 AM
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Only takes a little more length to cause stability problems. I was shooting the Sierra 63 gr SMP in my 220 Swift (20 inch barrel and 14twist) and had plans (hopes) to shoot the 60 gr Partition. I measured them, and the Partition was just a smidgeon longer (technically speaking, a smidgeon is a bitty bit longer). Dang Partition would only stabilize in certain temp conditions. Dang it...


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