.257 stw @ 3863 FPS

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Fiftydriver, Sep 11, 2004.

  1. Fiftydriver

    Fiftydriver <strong>Official LRH Sponsor</strong>

    Messages:
    6,848
    Joined:
    Jun 12, 2004
    Skeeter,

    Glad she is working better for you, the big 257 can be a little pissy at times, does not like cases with alot of firings on them as they work harden relatively quickly from this large volume of powder in the small bore.

    Good to hear you got the problem figured out and solved.

    Good Shooting!!!

    Kirby Allen(50)
     
  2. skeeter

    skeeter Well-Known Member

    Messages:
    48
    Joined:
    Sep 2, 2004
    26"
     
  3. skeeter

    skeeter Well-Known Member

    Messages:
    48
    Joined:
    Sep 2, 2004
    I was having hard bolt pull back [not lift] and round shiney spot on end of case.I was thinking that i was having sings of high pressure and need to back off the suger a little.But Kirby Allen is the MAN that know his shit.
    He told me that i need to use virgin brass or one fired brass for this type of pressure check and he was right. I tried the same 81.0g of RL25 and set back the bullet a little more than i had it and after 5 or 6 rounds iam getting the same FPS and there a very light round spot on the back of my brass and its not shiney.I feel safe with this load. Its about 85 degrees out side and the hard bolt pull back was from my brass needing to be annealed.I got that info. for Kirby too.
    THANKS SKEETER
     
  4. speed demon

    speed demon Well-Known Member

    Messages:
    48
    Joined:
    Oct 4, 2001
    what length barrel do you have on that .257stw?
     
  5. parkee

    parkee New Member

    Messages:
    1
    Joined:
    Dec 26, 2008
    does anyone on this site shoot a 6mmx.270wsm? Just wondering would be a good fast whitetail round in 85 gr barnes tsx.