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Max Online: 16728 @ 03/25/12 08:51 AM
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#7180552 - 05/26/18 09:40 AM .223 Rem 1-10 twist
Buzzsaw Online   content
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Registered: 06/29/11
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Loc: Frisco, Texas
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?


Edited by Buzzsaw (05/26/18 09:41 AM)
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#7180580 - 05/26/18 10:30 AM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
DStroud Offline
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Registered: 11/02/11
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Loc: In the Right lane
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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#7180751 - 05/26/18 04:28 PM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 26376
Loc: Wolfe City, TX
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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#7180787 - 05/26/18 05:25 PM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
Gravytrain Online   content
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Registered: 01/06/11
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Barrel length will make the difference. 16" problem, 24" probably okay.

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#7180841 - 05/26/18 06:54 PM Re: .223 Rem 1-10 twist [Re: FiremanJG]
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 23596
Loc: Texas
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.


Edited by kmon1 (05/26/18 06:55 PM)
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#7181118 - 05/27/18 09:24 AM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
RHutch Online   content
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Registered: 05/25/13
Posts: 529
Loc: Frisco
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.

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#7181207 - 05/27/18 12:18 PM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 13737
Loc: Lewisville, TX
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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#7181495 - 05/27/18 08:10 PM Re: .223 Rem 1-10 twist [Re: ChadTRG42]
Buzzsaw Online   content
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Registered: 06/29/11
Posts: 13846
Loc: Frisco, Texas
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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#7181541 - 05/27/18 09:30 PM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 26376
Loc: Wolfe City, TX
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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#7181548 - 05/27/18 09:39 PM Re: .223 Rem 1-10 twist [Re: Buzzsaw]
603Country Offline
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Registered: 07/03/12
Posts: 6570
Loc: Central Texas
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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