243 long range questions

Discussion in 'The Basics, Starting Out' started by handirifle, Feb 4, 2013.

  1. handirifle

    handirifle Active Member

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    Mar 7, 2012
    My next build will be a long range 243. I plan on an 8 twist barrel, but am wondering about COAL. I want to keep the rifle as a repeater, so that will determine a lot of what else I can do with it. Thus I want to draw on the experience of this forum.

    I figure bullets in the 105-107 weight for sure, but also wondering about the 115's. Has anyone here shot either the 115 DTAC or the 115 Berger, through an 8 twist barrel? Did they stabilize and how long did you load them?

    I also wonder about throat depth for those bullets. In my thinking, the rifle would most often be shot from 100-600yds and hopefully get a chance to 1000 on occasion. I would use the 115s (if they work) for long range target only, cause I think there are better hunting bullets. If need be I could single load them, but I wouldn't want to make the throat super long for them and make it inaccurate for the shorter bullets.

    Comments, suggestions?

    Thanks
     
  2. dzlfarmboy

    dzlfarmboy Well-Known Member

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    Mar 30, 2010
    I have a 1:7.5 twist Bartlien 24" .243 that I shoot out to 830yds weekly. Im running the 105 Berger Hybrid @ 3000ish and Jon bean land cut it so I was touching the lands @ 2.835 and I seat mine a 2.840 .005 jam. I run a Defiance action thats cut for AW mags and use them as they will allow me to seat out to 2.940 ( I think ) if i need to start chasing the lands.

    I also have some 105 Hunting VLD's im going to try next time I shoot to see how the drops are compared to the Hybrids with a lil higher coefficent. So that might be a good option to look at if your shooting mostly 100-600 and wanna hunt with it.

    My drops are

    200yds------.4 mils
    400----------1.6mils
    600----------3.1mils
    830----------5.4mils
     

  3. grit

    grit Well-Known Member

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    Mar 23, 2005
    The 105's have proven more accurate, as a rule, than the longer bullets. Therefore, most folks choose to stay with 105's...
     
  4. handirifle

    handirifle Active Member

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    Is the 8 twist sufficient for all the 105's? David Tubb has won some big matches with his bullet. I read he uses a 1-7.5 twist most of the time. Do you think that might explain why their accuracy isn't up to par?
     
  5. ol mike

    ol mike Well-Known Member

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    Yes 1-8tw is perfect for 105's -- 1-7.5tw is for the 115 dtac bullets.
     
  6. sendero72

    sendero72 Well-Known Member

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    Feb 9, 2010
    I think the Davidson Brothers of Gunwerks shoot the 115 D-tac out of the 6cx out to 800 to 900 on deer/antelope. Not a lot of difference between the 243 and the 6cx. Their website may list the twist. If not call Sierra, they make the D-tac for Tubbs.
     
  7. handirifle

    handirifle Active Member

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    OK thanks guys.