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243 Twist Rate

 
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  #1  
Old 02-15-2009, 02:40 PM
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Join Date: Oct 2008
Location: UP of Michigan
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243 Twist Rate

Hello,
I am basically just starting out I have an Armalite 308 that I can take to 600 consistently just not that super accurate its bone stock. Any way got a Rem 700 SPS in 243 for long range shooting/ Michigan white tail/ Predator. I am going to put a new barrel on it. How long and what twist. I can't decide weather i want smaller fast pills smaller than 100 grain or bigger slower pills 100+. The search function has not been working for me.
Thanks for the help
Kdog
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  #2  
Old 02-15-2009, 03:32 PM
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Re: 243 Twist Rate

If you want long range you need to shoot heavy bullets, and to do that you need to twist it fast. I would go with a 1-8 twist, this will handle 107 grain hpbt bullets.
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  #3  
Old 02-16-2009, 12:32 AM
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Re: 243 Twist Rate

If you are gonna shoot below 30 degress ever, go with a 1 in 7 or 1 in 7.5 to stabilize the 107 to 115 bullets.
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  #4  
Old 02-16-2009, 10:41 AM
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Re: 243 Twist Rate

I agree with SM, go for the 1:7. We have several 1:8 6mm and only one of them will shoot the 115's. All shoot the 105s very well however.
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  #5  
Old 02-16-2009, 11:04 AM
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Re: 243 Twist Rate

The Broughton 1 in 8 I have will shoot the 115's and the Lilja 1 in 8 won't.
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Old 02-16-2009, 11:07 AM
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Re: 243 Twist Rate

Your Broughton is a great barrel.... I know !! he-he !!

That rifle is a shooter !
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  #7  
Old 02-16-2009, 11:23 AM
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Re: 243 Twist Rate

OUt of 2 243 AI's, one is a 1 in 8 and the other a 1:7.5. The 8 shoots 107's and 105's very well. Also will handle the smaller bullets (87 & 80 grainers) reasonably well. THe 7.5 works great w/ 115's.


Have you thought about 'Ackleytizing' your 243 win?
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