270 wsm & 170 gr Bergers - OAL?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by BLOODHOUND BRO, Feb 21, 2018.

  1. bkirkes

    bkirkes Active Member

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    Go hijack another thread.
     
  2. Longtooth32

    Longtooth32 Well-Known Member

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    I must of mis-understood your question. You are shooting Short Mags in a long action and I agreed with you that I was also shooting a long action...

    No hijack...the OP was asking what the OP could do with a SA...sounds like a longer mag box and some throating is the way to go...
     
  3. bkirkes

    bkirkes Active Member

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    Not too privey on merged threads
    10-4. What terminal ballistics have you encountered with the 170 at high velocities?
     
  4. elkaholic

    elkaholic Well-Known Member

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    You could build a 270 SS that will reach close to 3100 with a 170 and do it at 2.925 coal. Reamer, dies, brass all available. 2.925" to lands with 170 Berger and 2.850" with 150 LRAB at 3152' with 21" barrel......Rich
    270SS:170 Berger:150 LRAB.jpg
     
    Last edited: Feb 26, 2018
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  5. Clifflopez

    Clifflopez Well-Known Member

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    That is such an angry little package. For a short barrel pack gun, a 170 at 3100 is unreal! Well done, Rich.
     
  6. elkaholic

    elkaholic Well-Known Member

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    Well, it was JUST short of 3000 with a 21" so 3100 easily with a 26".
     
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  7. Longtooth32

    Longtooth32 Well-Known Member

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    @285yrds...3225fps @ muzzle...170 Berger...270Wby

    This is the opposite side wound of the entry on my Bull...

    Bull exit.jpg

    Kind of destructive...

    The bullet puked its guts out...

    Berger leftover.jpg
     
  8. BLOODHOUND BRO

    BLOODHOUND BRO Active Member

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    Great info guys. I’m going to dig in to the Sherman a bit.

    Regarding throating for the 170’s with standard magazine, how will affect seating depth/OAL if I want to shoot 130-140’s?

    What modifications can be made to extend mag past 3.000? Any short actions a little longer than 3.000”? Maybe a medium action? I’d really like to stick with SA as this is a lightweight build.
     
  9. elkaholic

    elkaholic Well-Known Member

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    The Tikka works great and has plenty of action length. I have a 7ss built on a Savage with a dbm which also works well. There are others that work with various mag combos as well.
    Shooting the lighter bullets won't be a problem.
     
  10. BLOODHOUND BRO

    BLOODHOUND BRO Active Member

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    Looking at your pic, it appears that I could set back the lands another 0.100” and still have plenty of bullet left out of the case.
     
  11. JTB

    JTB Well-Known Member

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    Agreed. Should be fine
     
  12. BLOODHOUND BRO

    BLOODHOUND BRO Active Member

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    I'll visit with my smith about setting the lands back. Has anyone shot the 170's with ±.100 jump?
     
  13. Longtooth32

    Longtooth32 Well-Known Member

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    I am shooting the 170 EOLs with a .3" jump on my 270 Wby.

    20 rounds with the 170 EOL @ .3" jump. Back of the truck, bi pod, rear bag...no concern for barrel cooling. ES around 10fps for these 20 rounds...Magnetospeed...

    170 Bergers....jpg
     
    Last edited: May 21, 2018
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  14. Longtooth32

    Longtooth32 Well-Known Member

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    Do not worry about the mid-weight 270s....with a longer throat...

    140gr SST with a .367" freebore @ 3625fps...

    140 SST.jpg
     
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