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Thread: Old lyman 313445 mould and thin sprue plate...

  1. #1
    Boolit Master mattw's Avatar
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    Old lyman 313445 mould and thin sprue plate...

    Posted the same question on another forum as well, don't want to miss any options before I get parts. Not sure if Lyman is the only place to get a better sprue plate and will have to measure cavity centers before I order anything.

    I have an old 313445 DC that i just love to shoot in the 32 H&R. The mould casts very well and for me with COWW + 2%'ish pewter drops about 80% good bullets. If I start with the mould to cool I get vent line fringes, but once hot it all goes away.

    My issue, it has the very thin factory sprue plate and it stinks! It does not always leave the base of the bullet nice and flat, if I slow down it has enough flex to leave a nubbin on the bullet base. Does anyone know if a thick sprue plate is available for that mould block?

    I have not been able to get it to hot, bullets do not frost. I assume it is because the cavities are tiny and the block just does not get that warm. So, one can cast very fast with this mould!
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  2. #2
    Boolit Master

    Mike W1's Avatar
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    FWIW, the last sprue plate I ordered from Lyman is quite a bit thicker than the old ones were.
    Mike

    Benefactor Member NRA
    Life Member Iowa Firearms Coalition
    US Army Vet

    There are two ways to conquer and enslave a nation.
    One is by the sword. The other is by debt.”
    John Adams 1826

  3. #3
    Boolit Master mattw's Avatar
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    Just ordered a kit from Amazon, did not think to look there. 10 bux and change shipped! I hope the screw thread is correct, it is supposed to include the thick plate.

  4. #4
    Boolit Mold olivier's Avatar
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    Hello,
    You can maybe find one by KAL Tool & Die.

  5. #5
    Boolit Master mattw's Avatar
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    The one from Amazon came in and it was thick with proper hole spacing! The only problem, the mould is old enough the new shoulder screw will not screw in all the way... feels like threads are different. The old shoulder screw seems to work. And wow, that plate needed the bottom trued. Their stamping press must be really rough on the steel.

  6. #6
    Boolit Master
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    It shouldn’t be this way, but it appears that the end user is the planned one to do final inspection and QC. I would lay a piece of fine grit sandpaper on a sheet of glass or other surface known to be flat and rub the spruce plate’s lower surface on it until it was uniformly shiny and smooth. Then I would enjoy those beautiful 313445s as they jump out ready to size, lube, and load.
    "It aint easy being green!"

  7. #7
    Boolit Master mattw's Avatar
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    I did, polished it down to 600 and reblued it! Works so well now.

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