300 ultra mag twist rate ?

IdahoRedneck

June 06, 2009 16:19

What is the standard twist rate, on your basic off the shelf remington model 700 in 300 rem ultra mag? Thanks in advance[:)] hoping its at least 1:12

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  nononsense

  June 06, 2009 16:37

  idahordnk,
  
  According to Remington's website it's 1:10" on all of their versions.
  
  I have several versions that have twist rates that range from 1:15" to 1:8" for various specialized uses and a lot of testing.
  
  Best.

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  IdahoRedneck

  June 06, 2009 16:47

  quote:Originally posted by nononsense
  idahordnk,
  
  According to Remington's website it's 1:10" on all of their versions.
  
  I have several versions that have twist rates that range from 1:15" to 1:8" for various specialized uses and a lot of testing.
  
  Best.
  
  
  
  
  
  So wait a minute, to be sure im thinking correctly 1:10 is faster than 1:12 isnt it. Thanks for the reply nononsense[:I]

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  tsr1965

  June 06, 2009 17:07

  quote:Originally posted by idahordnk
  quote:Originally posted by nononsense
  idahordnk,
  
  According to Remington's website it's 1:10" on all of their versions.
  
  I have several versions that have twist rates that range from 1:15" to 1:8" for various specialized uses and a lot of testing.
  
  Best.
  
  
  
  
  
  So wait a minute, to be sure im thinking correctly 1:10 is faster than 1:12 isnt it. Thanks for the reply nononsense[:I]
  
  
  Yes you are thinking correctly. The lower the number, the faster the twist. That equates to stabalizing a longer bullet. Depending on what the bullet is made of, conventionally it is also heavier, but that is not always true when the unconventional rears its head.
  
  I am thinking that the 1:15 twist is for the light 110 grain bullets, and the 1:8 is for something like the 250 grain plus VLD bullets. Velocity also plays a significant part in stabalization.
  
  Best

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  nononsense

  June 06, 2009 18:22

  tsr1965,
  
  "I am thinking that the 1:15 twist is for the light 110 grain bullets, and the 1:8 is for something like the 250 grain plus VLD bullets. Velocity also plays a significant part in stabalization."
  
  The 1:15" was the first of the experimental barrels that we made up to test heavier bullets at higher velocities. I was happy to report that in a cut-rifled barrel, I was able to achieve stability with bullets up and including 1.280" in length. This includes the Berger 175 gr. VLD and the 180 gr. Nosler Partition. We tested the Bergers out to 1,000 yards with excellent results in tolerable wind conditions. In windier conditions, the 210's would be a better choice with a commensurate twist rate.
  
  Best.

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