230 gr in a 10 twist

shooter7

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Nov 29, 2011
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Sun Valley, ID
I shot 230's for a while in a 3 groove 10 twist Lilja barreled 300 win mag. I got consistent 1 MOA groups without keyholing and saw one mule deer get shot with it and it absolutely hammered it. That was back when Berger had "1-10 minimum" printed on the box. I switched to the 210VLD and 212 ELDx and saw consistently better results which prompted a change.
 

Slick8

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Aug 13, 2012
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The Republic of Texas
I'm shooting 230s to .5moa or better at 600 yards in a 10 twist Muller.

I shot a red hind at 610 a few months back with a perfect pass through.
 

Jcook02

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Feb 2, 2020
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Kansas
230 OTM out of a 1-10 out of my RUM. 2913 FPS with a 26" Lilja. Same as Slick8, .5 moa and better.
 

WAMBO

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Dec 22, 2001
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Southwest Desert
Same here with my 1-10" twist Lilja on my 300 RUM, 2950 fps with the Berger 230, .5 moa 3 shot groups at 1K, sometimes .4 moa.
 

Rum Man

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Nov 2, 2017
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Montana
I'm out of town and dont have all my data but my 25" barrel 1/10 twist long range put together 300 Rum seems to like the 230 bergers & Nv570 @ 3036 ft.per.sec. Worked great out to a mile on a milk jug !

Rum Man
 

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FEENIX

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L.Sherm

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In my opinion the faster you spin bullets more than necessary it hurts jacket integrity which equates to lower accuracy.
 

mr296

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Nov 5, 2020
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Location
WA
I'm actually switching back from a 1:9 twist to a 1:10 for the 230 OTM.

I was previously running the 215 hybrid. Running my actual numbers through the Berger twist calculator, the 230 OTM is actually more stable than running the 215 Hybrid.

Screenshot_20210216-113205_Chrome.jpg
Screenshot_20210216-113307_Chrome.jpg
 

Alex Wheeler

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Jul 5, 2017
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1,285
Location
Montana
Don't fear a little extra twist. I tend to prefer a stability ratio around 1.8. I have over twisted a lot of bullets with excellent accuracy. It also helps them open. For example, my 280ai with 168 vlds is an 8.5 twist. Well over 2 stability factor. It kills elk well and has shot a pile of 3 shot 1.5"s and under at 600yds.
 
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