Anyone ever had pressure issues due to a stiffer firing pin spring?

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Elkhunter1983, Oct 1, 2013.

  1. Elkhunter1983

    Elkhunter1983 Well-Known Member

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    I put a wolff spring in my sav 111 7mm and ever since i have had real pressure issues with loads i did not before. Any input would be appreciated. Looking at just putting the factory back in.
     
  2. trueblue

    trueblue Well-Known Member

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    No, but interested in the answer.
    Will stay tuned.
     

  3. Elkhunter1983

    Elkhunter1983 Well-Known Member

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    Nothing eh? Maybe Im just a glutton for punishment.
     
  4. Mikecr

    Mikecr Well-Known Member

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    What are the pressure issues?
    Why did you change springs?
     
  5. Elkhunter1983

    Elkhunter1983 Well-Known Member

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    Blowing primers out of loads that never showed pressure issues before, ejector marks on loads that are very much middle of the road loads. I changed it because of the jump from the old spring, it looked like an s on the firing pin. Its a good pin with a smooth trigger break now but just wondering why it would cause it. It is the only thing I have changed since these issues started.
     
  6. Mikecr

    Mikecr Well-Known Member

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    Thanks for the patient answers.
    What's the cartridge & load?
    What's the head space setting?
    Are the pockets tight?

    I know that primer striking can hugely affect tune. I don't yet understand WHY.
    Your condition here, going beyond tune, may lead to better understanding.
     
  7. 7mmRHB

    7mmRHB Well-Known Member

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    Mike, I agree that changing a striker assembly can mess up your tune. I always thought that it was from increased vibration from a harder strike, changing bbl harmonics a bit. ---- RHB