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Reloading Berger Bullets


300rum 1/9 twist.

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Unread 12-10-2007, 08:38 PM
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Join Date: Nov 2005
Location: Riggins Idaho
Posts: 1,195
300rum 1/9 twist.

Hello, Im building a 300rum with a 9 twist and was windering if it is to much twist for the 210gr. class bullet or am I stuck with the heavy smk's?
I dont know who ever came up with the imaganary word of "Over Gunned"
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Unread 12-10-2007, 09:39 PM
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Join Date: Nov 2003
Location: Washington State
Posts: 2,726
10 twist 300RUMs using US869 at near max loads will work fine on 240SMK's out to about 1500, so I'm sure you're fine with a 9 twist for 210's. That's the word from guys who've shot that far anyway. I've only shot to just over 1000 (getting there...) and when did my part measuring/reading canyon winds, the 240's were doing minute of elk. Might talk to Kirby, but that may even stabilize the 265 AT RBBT Wildcat--1/8 might be better for the 265 though. My Sierra bullet chart reccomends 1/10 for the 210's and 1/9 for the 240's. Good luck.
In the beginning God created the heavens and the earth. Genesis 1:1

"And can the liberties of a nation be thought secure when we have removed their only firm basis, a conviction in the minds of the people that these liberties are the gift of God?" Thomas Jefferson - Notes on the State of Virginia

www.wildsidesystems.com - Shelter for Your WildSide - http://www.youtube.com/watch?v=tYwgo...&feature=g-upl
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Unread 12-12-2007, 11:45 AM
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Join Date: Jan 2007
Location: Great Falls, MT
Posts: 205
I'm having a 300RUM built also and it will also have a 1/9 barrel on it. I choose it because I plan on shooting the 200-220gr bullets and after talking to my smith we decided that would be a good twist. Later I was concerned that if I wanted to shoot some lighter bullets (who knows why) that it would be to fast for them. My smith said the 1/9 was a good compramize; it would stabalize? the heavier bullets but not over-spin the lighter pills.

I haven't got/shot it yet, but "that's what I heard."
Genises 27-3: Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison...
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Unread 12-12-2007, 05:05 PM
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Join Date: Feb 2005
Location: USA
Posts: 2,598
I am going to build a 300 RUM with a 1 in 8 twist inorder to shoot the 265 grain Wildcats...
range it,check the wind, dial in correction, aim and only one shot
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