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Thread: Iron mold; 3 vs. 4 cavity ?

  1. #1
    Boolit Master
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    Iron mold; 3 vs. 4 cavity ?

    I love RCBS molds but the one downside is that they only come in 2 cavity versions.

    I like iron molds and don't mind the extra work to protect them from rust. In the Saeco line, the price difference between 3 cavity and 4 cavity molds is slight. A 3 cavity mold would produce significantly more bullets in a session than a 2 cavity mold but at almost twice the cost of a 2 cavity. It's a one time expense and an expense than would be amortized over a long mold life.
    A 4 cavity mold is only slightly more expensive than a 3 and It would produce even more bullets per session but there's the weight penalty.

    Any thoughts or experience concerning 3 vs. 4 cavity iron molds?

  2. #2
    Boolit Master

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    I don't have any difficulty casting with 4 cavity iron molds. I have both H&G and Lyman molds. I feel like more than 4 cavities would be tiring. I can't imagine casting with an 8 or 10 cavity! RCBS does make a good casting mold!

  3. #3
    Boolit Master
    NoZombies's Avatar
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    I like 4-6 cavity iron molds alright. I'm less of a fan of my 10 cavity molds than I was when I was younger.
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  4. #4
    Boolit Master Jack Stanley's Avatar
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    Perhaps it depends on how sensitive your wrists are . I know many don't like the weight of iron at all and other like me use H&G four and six cavity without problem . Maybe in another twenty years when I turn eighty I'll turn in my iron but not right now .

    With the cost of bullets now the larger molds make more sense to me as long as you are comfortable using them . Three and four cavity molds are pretty easy to use for several hours .

    Jack
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  5. #5
    Boolit Master

    farmerjim's Avatar
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    I find 2 cavity molds too slow. A 4 cavity is minimum' I have a bunch of 4 cavity Lyman iron molds and like them all. I really love 6 cavity Al molds. I particularly like 2 each 6 cavity Al molds at the same time.
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  6. #6
    Boolit Master
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    So the 4 cavity is looking a little more attractive.

  7. #7
    Boolit Master


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    My experience is any 4 cavity is manageable weightwise. The only mold that I have that gives me problems is a 6 cavity H&G. I would always go 4 cavity over 3.

  8. #8
    Boolit Master

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    Quote Originally Posted by Petrol & Powder View Post
    So the 4 cavity is looking a little more attractive.
    Its a good compromise.

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