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Berger and barrel twist

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Old 01-17-2010, 03:50 PM
Junior Member
Join Date: Mar 2009
Posts: 12
Berger and barrel twist


Been on the site awhile reading all the Berger info and thinking about making the switch in my .300WSM. My question is I see they give a recommended barrel twist of 1-13 for the 168 and 175's;I have a Christensen Carbon One with a 1-10 twist barrel, am I going to have and issue?? Currently my rifle shoots fantastic with 165gr. accubonds over IMR4350 and to date have yet to recover one from an animal..

Thank you for any advice..
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Old 01-17-2010, 07:05 PM
Silver Member
Join Date: Sep 2009
Location: Cheraw S.C.
Posts: 285
Re: Berger and barrel twist

I don't think its THE recommended twist for that bullet.its the least twist that it takes to shoot that bullet.and if you think of the twist of a barrel like that then I wouldn't be able to shoot 52gn bullets or even 77gn bullets out of my 223 with a 1:9 twist.most of the time a faster twist will shoot the lighter bullets along with the heavies.thats why most go with a faster twist so they can have a more versatile rifel.
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Old 01-17-2010, 07:31 PM
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Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,515
Re: Berger and barrel twist

Berger is an advocate of spinning a bullet as little as possible and still have proper stabilization. This will lead to the most accuracy potential. Can you run 150's in a 10x? Yes. Is it the best possible combo? No. That is not to say that it wont work well. 10x's in 30 cals are best used with 220-240's and several all copper bullets but will work with any other bullet weight.
Long range shooting is a process that ends with a result. Once you start to focus on the result (where the shot goes, how big the group is, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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Old 01-17-2010, 08:14 PM
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Join Date: Jun 2001
Location: Potomac River
Posts: 5,057
Re: Berger and barrel twist

The faster you spin a bullet the more stress you place on the jacket and there comes an RPM that will cause the bullet to disintegrate. There is a line of reasoning that suggests that highly spun bullets with really badly stressed jackets will expand very easily and rapidly upon impacting game. This may be beneficial or it may be detrimental to a hunting experience. There have been a number of thread recently on impacting game with high speed thin jacketed, low SD bullets. Bergers have a thin jacket while the accubonds have a thick jacket made of a different alloy.
The Smokin Fur Rifle Club
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Old 01-19-2010, 09:35 AM
Gold Member
Join Date: Dec 2009
Location: South Central PA
Posts: 803
Re: Berger and barrel twist

In short yes it will work and you will most likely love them but to get the best accuracy play with the seating depth. Start in the lands and go back.
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Old 01-19-2010, 09:47 AM
Junior Member
Join Date: Mar 2009
Posts: 12
Re: Berger and barrel twist

Thank you for all the input..I'm going to try the 165's in the next couple weeks.The problem I've had in the past is my chamber will allow bullets out a bit further than my magazine..I'm going to give them a try though.
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Old 05-19-2010, 09:13 PM
Bronze Member
Join Date: Feb 2010
Location: just east of memphis, tn
Posts: 61
Re: Berger and barrel twist

I have a winchester model 70 coyote with a factory 1:10 barrel and I am thinking about switching from accubonds which shot close to 1/2 moa to berger 168's which have shot two incredible groups the first was .09 of an inch at 100 yds, the second was around .20 my gun likes them a thousandth off the lands but luckily I have a long magwell. I hope you have as much luck with them as I have
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