243, what twist for 105-107g

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by happylilcuss, May 23, 2009.

  1. happylilcuss

    happylilcuss Well-Known Member

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    So I am gettting a new rifle and it has a 1-10 twist. Will this work for 105-107grain lead? If not what would a 1-10 shoot well on average?
    I see a ton of custom guns with from 1-7, 1-8 twist barrels and obviously they work very well. So why doesnt rem, win, tikka, weatherby, browning, or howa use this twist in over the counter rifles? The offer between 1-9 1/8, to 1-12 so I am confused on why the disparity between otc and custom?
     
  2. Gnarly

    Gnarly Active Member

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    The 1 in 10" twist didn't work for my brother's .243WSSM,using the Lapua Scenar 105 gr bullets.They all keyholed.So we tried them in a .243 Win with same twist----same results!

    Heaviest bullets they liked were the 85gr Sierra HP's.

    But I realize your results may vary!

    ----Gnarly
     

  3. Tyler Kemp

    Tyler Kemp SPONSOR

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    95 SMK's with a 1-10"

    If you are getting a new barrel to 1-7" so you can shoot those 115+ bullets!
     
  4. happylilcuss

    happylilcuss Well-Known Member

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    Sounds about like I figured.. I dont understand why the manufacturers do this.. The 244 rem suffered from this same problem in its early days from what I understand. It came with a 1-12 or something and wouldnt stabilize the heavier bullets then rem came outwith the 243 and a 1-10 and was more friendly... So why not just go with a 1-8? Does it overrev the lighter projectiles? If so than I guess I understand the manu's trying to find middle ground.. But why would anyone rather shoot lowe bc bullets.. Maybe if they are hide hunting i spose.. Anyway rant over.
     
  5. 338 LEGEND

    338 LEGEND Well-Known Member

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    My 6mm remmy vls has a 1 in 9 1/4 and shoots 107s great.
     
  6. A/C Guy

    A/C Guy Well-Known Member

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    The slower twist rate is good for varmints and pronghorn. For 100 + grain bullets you will need a faster twist.
    My son's Savage (1/9) loves 100 gr bullets and my 700 ADL (1/12) only likes 87 grain bullets (or lighter)
     
  7. Tyler Kemp

    Tyler Kemp SPONSOR

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    I've heard of some bullets coming apart in fast twists. Most of the general public doesn't have any clue what a BC is and just choose the round nose with the shiniest lead on the tip...
     
  8. ottsixx

    ottsixx Active Member

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    the 1:10 twist in 243s is best suited to the 80-85 gr. bullets and if you want to tack drive the 100-105s the ol 1:9 twist does a swell job stabalizing those bullets.......................