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300 RUM twist rate

 
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  #1  
Old 11-25-2013, 11:00 PM
EFR EFR is offline
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300 RUM twist rate

Gentlemen: I'm looking for a little help on twist rates for the 300 RUM. I ordered a Borden Timberline action the other day and have to pick a twist rate for the barrel (Bartlein). The rifle will be chambered in 300 RUM, and I have no experience with the cartridge. I am putting the rifle together for long range (for me) Elk and deer. As far as distances, well that will be dictated by how competent we (me, rifle, scope) all are. I'd hope to hit 700 yds, maybe even further.

As far as bullets, I'm looking toward the Berger (215) and Accubond LR (210), but don't want to be limited to just two. Who knows what the next best thing will be. For those of you familiar with the 300 RUM, am I on the right track for bullets? Is there a reason to go lighter? What twist rate should I be looking at? (I am aware that twist rate is directly proportional to bullet length). Berger website recommends 11" or faster, but their twist rate calculator gave the 11" marginal stability with the 215gr. I emailed both Berger and Nosler and neither has responded. I spoke with a gentleman at Bartlein today, and he recommended 10".

Any and all competent help is appreciated. Thanks.
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  #2  
Old 11-26-2013, 07:49 AM
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Re: 300 RUM twist rate

10" should be fine. Most of here that have 30rum's are spinning 225-230 grain hpbt's just fine on a 10" while also keeping good accuracy on lighter bullets. A slower twist would handicap this round I should think.
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Old 11-26-2013, 10:15 AM
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Re: 300 RUM twist rate

3 300RUMs and a 300WSM are all 10.

That twist will shoot any lead or non-lead.
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  #4  
Old 11-27-2013, 12:29 AM
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Re: 300 RUM twist rate

just ordered mine on ebay from grizzly machine last week. they have a large selection of bartlein's in stock.
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  #5  
Old 11-27-2013, 03:00 AM
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Re: 300 RUM twist rate

10 twist for certain, there is no point in using bullets less than 180 gr in the 300 RUM.... 200 gr is better, and the heavier bullets are even better ... I just got a Bartlein 30 cal 10 twist in Light Palma contour from Butch's Reloading .... they have them in stock and several others.... take a look.....


Bartlein Barrel , .308, 1:10 Twist,5r, No.10 Contour, Lt.Palma , 31" - Butch's Reloading
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  #6  
Old 11-27-2013, 11:17 PM
EFR EFR is offline
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Re: 300 RUM twist rate

Thanks for the help guys, Nosler responded yesterday, 1-10 as well. No word from Berger. I ordered the 1-10 Bartlein today.
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