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Thread: Busy Weekend - Draft Design of my 9x39 Clone :)

  1. #11
    No Hope For Me 1biggun's Avatar
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    speaking of over all length If you are going to do your own mag then you might as well make it a little longer than the AK mag and then you would not have seat the bullet in so far this will help with the case capacity and also make using really heavy bullets even more possable.. was thinking of a custom mag in a 300 savage build to take advantage of ther shorter than a 308 win OAL length to give a little more trigger guard room and all that. A modifed grendal AR mag would likely work as well. that mag you are envisiong would also be great on a PPC build or even a 6mm bench rest.

  2. #12
    Happy Camper hcpookie's Avatar
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    OAL is subject to the bullets I find and modify. Yes, I said I am going to modify bullets. In bullet swaging terms, I am planning to "draw down" a .366" bullet to the .358"... that will result in a slightly longer bullet with a longer boat tail - assuming I can get it right. This type of work is (apparently) most often done with pistol calibers, but it is not unknown to do this to rifle calibers.

    I am exploring the possibility of swaging bullets from lead wire and copper hulls, but I don't know if the tooling my dad obtained can do it. He actually has a fully-furnished bullet swaging station, and has no use for it. Very handy!

    If it can handle it, that will save me about $500 in bullet swage tooling. I will need to build my own die set for the long bullets. Getting the oglive down just right will be interesting. I'll probably have to build a reamer just for that because I'm not sure you could "freehand" bore an accurate oglive on the lathe.

    The goal is to fit into an un-modified AK magazine well, irregardless of whatever shape the magazine takes. Therefore the MAX OAL will be VERY close to the OAL of a standard 7.62x39 FMJ cartridge.
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  3. #13
    Gunco Member bert01's Avatar
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    i understand the do it yourself angle but why not just buy .358 rifle bullets?

  4. #14
    Happy Camper hcpookie's Avatar
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    Show me the 250 gr. FMJ BT in .358 and I'll use them. The closest I've found are the Nosler ballistic tips in .366.
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    Project Pink - the Pink and Blue AK-74:
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  5. #15
    No Hope For Me 1biggun's Avatar
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    there are a few 200 GR bullets for the 35 remington if I recall like the remington core lokt PSP,s there are the barnes 225 gr triple shock x bullet. and hornady makes the 200 & 250 grain interlock rn and spp,s not sure if any of these are a BT design but but it seems thay would be pretty close to what you need (these are all .358). I take it that you goal is to get keep this subsonic given the small case capicty and 250GR bullet weight? just out of curosity why do you want to stick with FMJ? is it to mimic the original design as close as possable? If you can swedge your own bullets that would be great. It would be nice if it would shoot cast lead as well as this would make it a lot cheaper to shoot and the slow velocitys that you are going to have would make cast bullets seem ideal as well.

  6. #16
    Gunco Member bert01's Avatar
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    they make a 225 grain accubond BT and a gameking BT in .358

    nosler

    sierra

  7. #17
    Gunco Veteran muttman's Avatar
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    hcpookie,
    I have just layed my eyes on this post and sounds like what I would like to do to a M/N m44 using a 54r case. I would like to know how you are planning on working up this load, the starting point is what I haveing truble with, geting a barrel and fiting it on a action is the easy part for me but the rest is out of my limited smithing brain. muttman

  8. #18
    Gunco Member bert01's Avatar
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    i would think that for 54R cases you may be able to use starting loads for a 9.3x57

    for hp's i would just start with 7.62x39 loads and work up

  9. #19
    Happy Camper hcpookie's Avatar
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    Quote Originally Posted by muttman
    hcpookie,
    I have just layed my eyes on this post and sounds like what I would like to do to a M/N m44 using a 54r case. I would like to know how you are planning on working up this load, the starting point is what I haveing truble with, geting a barrel and fiting it on a action is the easy part for me but the rest is out of my limited smithing brain. muttman
    Load data is completely based on the magazine article about the "35x39" from a while ago by James Mason. Look at the very bottom of my page here (the scans are really big):

    http://pookieweb.dyndns.org:61129/Gr.../9x39_info.htm

    My neck will be a bit higher than his, so I can probably go with just a little bit more powder. I'm still researching load data that other conversions have used.
    Gunco Member #10

    http://pookieweb.net


    The "original" Boltcutter Rivet Squeezers:
    http://pookieweb.net/AK/rivet/boltcutters/boltcutter.htm


    Project Pink - the Pink and Blue AK-74:
    http://pookieweb.net/pink/pink.htm

  10. #20
    Gunco Veteran muttman's Avatar
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    hcpookie,
    I have, "or had" a artical from some g&a mag that refers to the 9x39 as a sniper round. if I can find it Ill scan off and send it your way. this artical what gave me the idea of a 9x54r. muttman

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