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Thread: Ideal mould 358429 ?

  1. #1
    Boolit Mold
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    Ideal mould 358429 ?

    I was checking out some moulds I got earlier. Found an Ideal mould. 358 in top left corner 429 in top right corner and 126 along bottom edge in center all on the same side . it's a single cavity, steel mould in pretty nice shape. Can someone give me some info on this ? I've checked old posts and looked up ideal/Lyman and not finding what I'm looking for .thank you

  2. #2
    Boolit Buddy StuBach's Avatar
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    Ideal mould 358429 ?

    The info you need is the 358-429 as this is the diameter (358) and the cherry number (429) that ideal used. The remaining digits are just a block matching piece so you donít mix up blocks. For more information on how molds are numbered you can search the forum (each manufacturer may use different pattern), there are numerous posts on the subject.

    Here is link to Midways site selling the design you asked about.

    https://www.midwayusa.com/product/10...semi-wadcutter

    What kind of info are you looking for?

    There was a group buy for this design a couple of years ago where MP Molds made some new ones of these with HP option. Very nice shooting bullet in my experience.

    MiHec Brass 358429 HP/ Aluminum 8 Cavity 358429 Keith SWC - RERUN
    https://r.tapatalk.com/shareLink?sha...1&share_type=t

  3. #3
    Boolit Man
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    That bullet is an old favorite. It was designed by Elmer Keith the famous pistol shooter and gun writer. At a weight of 173gr, the bullet is quite a bit heavier than the usual 158gr round nose for the 38 Special cartridge. The heavier weight gives better penetration and the semi-wadcutter nose provides better energy transfer (shock). I have used this bullet in stout 38Sp loads for self defense. Also killed deer and coyotes with this bullet in 357 Magnum.

    Your mould is an early one and may have some collector interest.

  4. #4
    Boolit Master


    fecmech's Avatar
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    When I started casting in 1970 I ordered two 4 cavity molds, a wadcutter and 358429. I've shot literally thousands of 358429 over the years in various .38's and .357's. It is a very accurate bullet over max charges of 2400 and 296/H110 and what I load for max performance .357 loads.
    "Of all tyrannies, a tyranny sincerely exercised for the good of its victims may be the most oppressive. It would be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated; but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience."
    - C. S. Lewis

  5. #5
    Boolit Buddy StuBach's Avatar
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    Lyman 1st Edition Cast Handbook


    Itís also listed in my 49th edition Reloading Handbook and my 4th Edition Cast Handbook

  6. #6
    Elmer Keith drew up the design for the 358429 SWC in about 1929 - 1930 so it would have been designed for the 38 SPL, as the design date actually preceded the design of the 357 magnum by about 5 - 6 years. Many 357 chambers will be too short to load that bullet in 357 brass unless you crimp over the forward driving band instead of in the crimp groove. That was the bullet Elmer used to make up his 38/44 loads, using 38 SPL cases and about 12 grains of the old Hercules 2400 powder. I know they won't fit in my Marlin rifle chamber in 357 brass, but did well in the 38/44 load.
    If it's an Ideal mold it may be worth more as a collectors item than as a mold for making bullets, as Ideal was the original commercial manufacturer of that bullet. I'm not all that familiar with Lyman history, so I can't tell you when they changed the name on the mold from Ideal to Lyman.
    Last edited by gundownunder; 10-29-2018 at 07:49 PM.
    Hard work made me what I am today,
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  7. #7
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    Pressman's Avatar
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    Lyman bought the Ideal business in 1926 from Phineas M. Talcott who bought Ideal from the Marlin Firearms Co. in 1916 who bought Ideal from Mr. John Barlow in 1910 who started Ideal in 1885.
    Lyman finally dropped the
    Ideal name about 1956 or so.

    ken
    Antique Reloading Tool Collector, Historian and Writer
    Newsletter editor: Antique Reloading Tool Collectors Association
    Archive manager, Antique Reloading Tool Collectors Association
    email: pressman@antiquereloadingtools.com
    www.antiquereloadingtools.com

  8. #8
    Boolit Mold
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    I've been thinking about molding a few for measuring and comparison to see if they may work in my brothers 35 Remington, has anyone tried this? I believe they are close in diameter, and 173 gr is a tad lighter than my 35-200-RN mold. Has anyone had any experience doing this or has my lead addiction gotten the best of me? I realize we would have to slug the barrel. I also need to see if I've got a set of handles for it. any ideas on what brands may fit? I may be unwise in doing this if it has more of a collectors value than as a working mold. any advice on this ?

  9. #9
    Boolit Master
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    the 358429 is the first bullet I ever cast and the first bullet I ever loaded. I used a lot of them in .38 spl. cases with 3.5 gr red dot. it is a sweet shooting load. I also loaded a lot of thst bullet in .38 cases over 6 gr. unique. for town police forces they liked the way it cut through car doors. it also got around the city counsel that said you could not use magnum loads in your .357 carry guns.

    I have killed everything from water skippers to deer with that bullet in .38 cases.

  10. #10
    Boolit Master s mac's Avatar
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    Single cavity Lyman handles should work, double cavity handles will as well with a bit of grinding modifications.
    I have several Ideal moulds, I feel they were made to use, just don't abuse it.

  11. #11
    Boolit Master
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    I have a lot of single cavity molds. they may be a little slow but every bullet is the same.

  12. #12
    Boolit Master

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    I hunted down a ldeal DC 358-429 a while back just because I figured I had a better chance of getting a fatter cast bullet with the older ideal mold , and I did . I think besides flat out abuse to a mold -neglecting a mold would do more harm than casting with it . So I would say try it .

  13. #13
    Boolit Master Walks's Avatar
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    Any LYMAN mold with a slotted locking screw for the sprue plate screw and no dings is worth keeping.
    And has 95% chance of casting fat bullets with any alloy up to and including 40/1.

    Find a set of handles specifically made for single cavity mold. You'll have a better chance of proper mold. alignment.
    Happiness is a Warm GUN & more ammo to shoot in it.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check