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Thread: B.C. of .431 keith SWC?

  1. #1
    Boolit Master Oklahoma Rebel's Avatar
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    B.C. of .431 keith SWC?

    does anyone know the actual ballistic coeffiecient (sp) of the noe 432-277 keith SWC? I was looking up the ballistic calculator at handloads.com and the BC calculator there says .182, but that's just from choosing the SWC/HP option, which might be close, but I'm not confident on how close. also, has anyone had experience with these boolits (E.K's not just noe) with a cup point? seems that it would help some, while not limiting penetration too much, and also not as likely to shatter on impact. thanks!
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

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    Boolit Grand Master Artful's Avatar
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    je suis charlie

    It is better to live one day as a LION than a dozen days as a Sheep.

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  3. #3
    Boolit Master mehavey's Avatar
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    G1: @Lyman 429421

    0.210 > 1,300fps
    0.250 <1,300>800
    0.200 <800

  4. #4
    Boolit Grand Master Artful's Avatar
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    Give a man a fish and you feed him for a day, teach him to fish and he can feed himself for life.
    je suis charlie

    It is better to live one day as a LION than a dozen days as a Sheep.

    Thomas Jefferson Quotations:
    "The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."

  5. #5
    Boolit Master mehavey's Avatar
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    in that case... get, learn, use QuickLoad

    or just Google < Lyman 429421 ballistic coefficient >
    (Google knows everything)

  6. #6
    Boolit Master Oklahoma Rebel's Avatar
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    thank you, I just thought that the choice of SWC/HP was kindof a broad range of boolits, thanks for the 429421 specific info,artful, I know how to fish, especially catfish!
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  7. #7
    Boolit Master Oklahoma Rebel's Avatar
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    I would love to have quickload, just can't afford it at the moment
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  8. #8
    Boolit Master stubert's Avatar
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    According to the noe website .1953

  9. #9
    Boolit Master Oklahoma Rebel's Avatar
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    oh, I looked, but didn't see where they say that. Thanks!!!
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  10. #10
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    Quote Originally Posted by Oklahoma Rebel View Post
    oh, I looked, but didn't see where they say that. Thanks!!!
    FYI,

    I'v been there too, look at the lower right hand corner for his drawings. It lists the estimated BC for each mould he makes. Here is a link for all of the 0.434's he has. Looks like the 432277 Keith is 0.2052 for the solid.

    http://noebulletmolds.com/main/category/432/
    Steve,

    Life Member NRA
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    NAGR member

  11. #11
    Boolit Grand Master Artful's Avatar
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    Quote Originally Posted by Oklahoma Rebel View Post
    oh, I looked, but didn't see where they say that. Thanks!!!
    See, you just found a new fishing hole
    je suis charlie

    It is better to live one day as a LION than a dozen days as a Sheep.

    Thomas Jefferson Quotations:
    "The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."

  12. #12
    Boolit Master mehavey's Avatar
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    They're both fireplugs (well maybe the Lyman is more the "Keithy" in profile).
    I'd sorta average things out at closer to the Lyman, say BC ~ 0.2093356


  13. #13
    Boolit Buddy
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    How do the above Boolits compare to the Hensley & Gibbs #503 Keith??

  14. #14
    Boolit Master mehavey's Avatar
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    The 429421 and the 503 are fraternal twins.
    http://arsenalmolds.com/image/cache/...38-500x500.jpg

    The usual Demosthenesonean statement is "... the 503 is a Keith, while the 421 might still be a Keith...."
    Lotta history involving Elmer w/ both companies and both bullets. And we can't ask him anymore.
    Last edited by mehavey; 02-15-2018 at 08:16 AM.

  15. #15
    Boolit Master
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    Real Keith??
    Who makes one??
    Demosthenes didnt know anything about a Keith bullet regardless of his oratory capability.
    Let me know who make a TRUE Keith and I'll buy two molds.

  16. #16
    Boolit Master Oklahoma Rebel's Avatar
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    yep, that did make a difference in the ballistics, in fact about 1.5in less drop at 100 yards, artful, I could always use aa new fishing hole! by the way, I think I have asked before, but what is that B-A-utiful car on your profile? I love those older cars, my favorite is the 1950 ford 2 door sedan, with the round "boolit" in the grill!
    An armed man in a citizen.
    An unarmed man is a subject.
    A disarmed man is a slave.

  17. #17
    Boolit Grand Master Artful's Avatar
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    Quote Originally Posted by Oklahoma Rebel View Post
    artful, I could always use aa new fishing hole! by the way, I think I have asked before, but what is that B-A-utiful car on your profile? I love those older cars, my favorite is the 1950 ford 2 door sedan, with the round "boolit" in the grill!
    1938 Delahaye 165 Cabriolet
    http://www.car-revs-daily.com/2014/0...n-auto-museum/

    https://www.supercars.net/blog/1938-...iolet-gallery/

    One interesting feature is that the front wind screen cranks down with the top off



    Note the foot step built into the trunk


    The way it sits - it remiinds me of a floating car/speeder out of buck rogers




    Don't own one but if my lottery ever comes in them maybe
    https://www.cnbc.com/2014/03/10/66-m...r-auction.html

    https://www.hemmings.com/classifieds...5/1792713.html

    https://www.prewarcar.com/232918-del...-1936-for-sale

    Someone loved these enough to try and bring them back
    http://www.delahayeusa.com/delahaye-build-your-own.php
    https://www.hemmings.com/classifieds...-sale/delahaye


    Location: St. Louis, Missouri, 63146
    Seller: Hyman, Ltd. Advertiser since 1990
    Phone: 3145246000
    $275,000

    Still not the panache' of the older ones.
    Last edited by Artful; 02-15-2018 at 06:14 PM.
    je suis charlie

    It is better to live one day as a LION than a dozen days as a Sheep.

    Thomas Jefferson Quotations:
    "The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government."

  18. #18
    Boolit Master mehavey's Avatar
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    Let me know who make a TRUE Keith and I'll buy two molds.
    First, you gotta decide WHAT a "true" Keith is.
    (FWIW: Lyman's 429421 is the "Keith".)

    Rounded lube groove vs original squared is seems now to be the debate,
    with rounded arguably better able to function at higher pressures.

    On that last note, I add
    Every advantage in the past... is judged in the light of the final issue.
    Last edited by mehavey; 02-15-2018 at 08:25 PM.

  19. #19
    Boolit Master
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    Quote Originally Posted by mehavey View Post
    First, you gotta decide WHAT a "true" Keith is.
    (FWIW: Lyman's 429421 is the "Keith".)

    Rounded lube groove vs original squared is seems now to be the debate,
    with rounded arguably better able to function at higher pressures.

    On that last note, I add
    Every advantage in the past is judged in the light of the final issue.
    In the years from '75 till shortly before his Stroke I talked with Keith an average of three or so times a year on the phone.
    He said in his book"Sixguns" the bullet picture on the page with all the other cast bullets was from an original Keith mold from Lyman. Unless he was delerious it looks nothing like the "Keith" bullets of today.
    On page 286 in my Sixguns book.
    Last edited by 44MAG#1; 02-15-2018 at 08:34 PM.

  20. #20
    Boolit Master mehavey's Avatar
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    post a pic?
    (ordered book. `had HIWT for close to 40 years)


    postscript: I'm looking at a 1970 (effectively half century ago) Lyman 45th. The 429421 in that volume is by my eyes identical to the one in post#12 above. It is most definitely not anything like the NOE or H&G referenced therein.

    Look also at http://www.lasc.us/fryxell44swc.htm Fig. 2.
    That is the original "Keith" shape
    Last edited by mehavey; 02-15-2018 at 10:43 PM.

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