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Thread: Bushing firing pin?

  1. #1
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    Bushing firing pin?

    How important is it on the accuracy scale? Is there a good write up on how to do it? Is it worth it? Thanks

  2. #2
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    I would have thought that a custom benchrest action would be adequately machined & not require remedial work.

  3. #3
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  4. #4
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    I visited his shop years ago

    Quote Originally Posted by Al Nyhus View Post
    Interesting guy.

    Pete

  5. #5
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    OP,
    ream/install an oversize f/pin w/ .003" clearance to give you option(s).

    A word of caution-
    Do Not dry fire a 1/16" diameter f/pin.

    There is also the venturi effect going from a .075" diameter to .062" diameter pin if one blanks/pierces a primer.

  6. #6
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    Quote Originally Posted by Dans40X View Post

    A word of caution-
    Do Not dry fire a 1/16" diameter f/pin.
    Why is that? This is the first time I've heard that advice.

    GsT

  7. #7
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    Quote Originally Posted by Dans40X View Post
    OP,
    ream/install an oversize f/pin w/ .003" clearance to give you option(s).

    A word of caution-
    Do Not dry fire a 1/16" diameter f/pin.

    There is also the venturi effect going from a .075" diameter to .062" diameter pin if one blanks/pierces a primer.
    Thank you. I was considering a sleeve and use the oem firing pin. Your way sounds easier

  8. #8
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    Quote Originally Posted by Al Nyhus View Post
    I watched that before, thanks. Was looking for a tutorial. I found one write up without pictures.

  9. #9
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    I have a Savage Long Range Benchrest in 6MM BR. It was cratering and giving off-center primer hits. Also, the accuracy had fallen off a good bit from its early years.

    I sent the bolt to Greg and it came back quickly. No more cratering and no more off-center primer strikes.

    Now, you can't send someone a bolt and expect the entire rifle to suddenly shoot a lot better. I have not spent the time to find the load, seating depth etc. that it wants now. However, I'm a step further along the road. I am happy with his services.

  10. #10
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    Borden method.
    Attached Files Attached Files

  11. #11
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    Quote Originally Posted by GeneT View Post
    Why is that? This is the first time I've heard that advice.

    GsT
    They bend & break when turned straight.
    There is/was a reason the firing pin had a taper from the stop shoulder to the tip.


    Mram10,
    Thank you. I was considering a sleeve and use the oem firing pin. Your way sounds easier.
    Order a D.Holland oversize pin & ream the breech face for a few thousandths clearance....done.
    Practice bushing the breech face,after you have seen a tutorial w/ pictures.

    WSnyder,
    I've never had to replace the firing pin on a J.Borden bushed bolt or firing pin.
    Last edited by Dans40X; 02-28-2020 at 08:57 PM.

  12. #12
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    Quote Originally Posted by Dans40X View Post
    They bend & break when turned straight.
    There is/was a reason the firing pin had a taper from the stop shoulder to the tip.


    Mram10,
    Thank you. I was considering a sleeve and use the oem firing pin. Your way sounds easier.
    Order a D.Holland oversize pin & ream the breech face for a few thousandths clearance....done.
    Practice bushing the breech face,after you have seen a tutorial w/ pictures.

    WSnyder,
    I've never had to replace the firing pin on a J.Borden bushed bolt or firing pin.
    Thanks. Will do

  13. #13
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    Quote Originally Posted by WSnyder View Post
    Borden method.
    Thank you. Iíll check it out

  14. #14
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    I've always wondered how the best way to bush a bolt was done. The Borden guide has been saved for future reference!

  15. #15
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    Wichita Falls, Texas
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    Lightbulb Years ago........

    ......I posted the following on the saubier(small caliber)board.

    As a reference, and a good read, refer to Precision Shooting magazine, May 2001, page 31, "The Real Reason Primers Pierce" by Jerry Stiller.......you know....the guy who designs actions.

    Hope this helps.

    Kevin

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