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Thread: Ideal 358439

  1. #1
    Boolit Buddy
    Join Date
    Jul 2016

    Ideal 358439

    A while back i aquired a 358439 without a hp pin. I made a replacement using another molds hp pin as a reference. I am wondering how close i got to factory. Does anyone have this mold that they wouldnt mind measuring the depth from nose to tip on the hp pin?

  2. #2
    Boolit Bub
    Join Date
    Feb 2009
    I think Lyman changed this design slightly over the years it was produced, so the HP depth may not be the same on all molds. Mine is an older mold (no vent lines) and from nose to tip of the HP pin is .409.

  3. #3
    Moderator Emeritus

    Join Date
    Mar 2005
    SW Montana
    I sent mine back for a pin and recall it measured 0.155" and protruded about 1/3 of the bullet depth.
    [The Montana Gianni] Front sight and squeeze

  4. #4
    Boolit Master

    Nueces's Avatar
    Join Date
    Dec 2006
    Texas Hill Country
    Some early versions had pins that went back to the crimp groove and these earned a high rep for hunting effectiveness. I recall an old article in either Rifle or Handloader that told of a hunter bringing down a large ruminant (elk, I think) with one shot with the long pin 358439 from a Smith M19. The cylinder length of the 19 featured prominently in the story.

  5. #5
    Boolit Master oldhenry's Avatar
    Join Date
    Mar 2016
    Albany, GA

    Photo attached with measurements

    My mold is an old one purchased in 1960. I is branded "Ideal".

    The attached photo with notations should help. In the event my notations are not legible:

    1. The tapered end that is discolored from the heat measures .420. I inserted it into a boolit to make sure I was getting an accurate HP depth.

    2. The pin dia. before the taper is .157

    3. You'll note a slight radius @ the end (very slight).The dia. before that slight radius is .116

    4. The length of the stem from the shoulder to the tip is 1.055 (not shown in the photo).

    I hope this helps.


    BTW The stem on my molds extends back to the crimp groove: in fact, to the bottom of the crimp groove.
    A real sport involves either gasoline or gun powder.....all others are just games
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    Last edited by oldhenry; 05-02-2018 at 12:40 PM.

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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
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HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
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LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
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