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Old 10-27-2009, 04:51 PM
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.338 Lapua barrel twist rate

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I am building a .338 Laupa and want to shoot the 300 grn bullet. When I went to order the barrel from Krieger they suggested a 1-.935 instead of a 1-10. Any thoughts?
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Old 10-27-2009, 05:14 PM
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Location: Dallas Texas
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Well, I dont have a 338 lapua but I have got barrels from krieger and they make good barrels. Most likely they have built many barrels for the 338 lapua so I would take their advise.

You going to be shooting some 300gr SMK's?
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Old 11-06-2009, 12:05 PM
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Sako, Heym and Accuracy International all makes rifles in this cal. and they all use1-10" twist.
Most barrelmakers do.
This twist rate handles bullets from 200-300gr very well and most produsers I have heard of uses
this twist rate.
It cant be just because its easier to make a 1-10" twist.
You might wanna shoot some other bullet weights too from time to time.
Just a Tought.
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Old 11-06-2009, 01:15 PM
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The 1 in 9.25 is the 'best' for 300 grainers from what I've been able to find. It is however a tad to fast for the 250 grainers. Hence why a lot of manufactures use a 1 in 10 due to good stability for a wider range of bullets.
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Old 11-06-2009, 01:19 PM
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If you are only ever going to shoot one bullet why not get the optimum twist rate, you'll have less chance that it won't shoot well (although thats rarely an issue with Krieger barrels). Plus, they are the masters in building precision rifle barrels, why question them?
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Old 11-09-2009, 05:08 AM
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I have a 338 Lapua with a 1 in 10 twist my barrel is a Rock Creek, carbon wrapped by ABS. Sierra recomends a 1 in 10 twist for the 300 grain SMK. The 300 grain SMK is what I shoot. There is noting wrong with a 1 in 9 twist eight and a 1 in 9 will shoot any wieght bullet nicely., as well.
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