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Thread: 243,260 or grendel for ak

  1. #11
    Happy Camper hcpookie's Avatar
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    Don't worry too much for AK trunions handling the pressure - remember all those discussions about the .308 bolt vs. the 7.62x39 bolt, with comparison pics. If you use a bulged trunion Yugo kit as the start, it will have the same amount of metal as the 7.62x39 build. My Romy "G" kit build into .308 shows no signs of excessive wear.

    Whatever you do, I'd recommend a .064" thick blank. Those .050" blanks may work as well, but you really want the extra metal to stiffen it up.
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  2. #12
    Gunco Regular Buick Guy's Avatar
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    So if I wanted a .243 AK I could use a Yugo trunnion and cold Steel Solutions RPK receiver blank with the rest of a Romy kit, right?
    If the left can make a cowardly mass muderer like che guevara a hero, I can make PinoCHEt mine.
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  3. #13
    tired of idiots vz58's Avatar
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    possibly, the question is whether or not the 762 bolt can handle the higher pressures. The trunnion is the same (in the critical areas) as the 308 trunnion. The difference is the lugs on the bolt. The 308 bolt has the extractor area moved forward away from weakening the lugs.
    pressure on the 308 and 243 is significantly higher than 762 plus the diameter of the base is larger (more area pushing against bolt)

  4. #14
    tired of idiots vz58's Avatar
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    Well I bit the bullet and ordered 2 new factory Remington 700 take off barrels one in 243 and one in 308. Leaning towards the 243... But hey they were only $20 each new condition.

    Should have them by the beginning of next week.

  5. #15
    No Hope For Me 1biggun's Avatar
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    Price is right on the barrels.

  6. #16
    Gunco Regular pupwag's Avatar
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    Where did you find those cheap barrels?
    It's only metal, it's not magic.

  7. #17
    tired of idiots vz58's Avatar
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    If I tell you then you tell someone then they tell someone and pretty soon the secret is out and the price goes up.

    PM me


    After I can buy a couple more 2 weeks from now I'll post where they are at. He has 300 win mag, 243, 7mm mag, 308.
    Last edited by vz58; 05-07-2008 at 07:24 PM.

  8. #18
    Gunco Member us_dragunov's Avatar
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    Damn guys....save some for me...I'm still in Russia. :-(

  9. #19
    Gunco Regular Gunter's Avatar
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    Ok, here's a pic of the mag top.



    And a blurry one of it feeding. Round is started in the chamber and still held by the mag lip. Round pops out just before shoulder hits the trunnion side. (Sorry for it being the long way. Everytime I rotated the pic it would cut it off.)

  10. #20
    tired of idiots vz58's Avatar
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    Gunter, can you get a clearer pic of the front edge of the mag interacting with teh trunnion? No rush.

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