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.30 cal GC'd lead

Discussion in 'Handloading and Reloading' started by blarby, Dec 6, 2012.

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  1. blarby

    blarby Member

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    So, in .308 cast lead..... or 309, as it were.

    With a gas-check, where do you think the pressure line for performance ends, and true jacketed begins ?

    In other words, what speed do you think GC'd lead in .308 could be pushed up to ?


    Essentially trying to decide if I'd rather buy a bucket of cheap jacketed, or the setup to cast and check for next years fun and games.

    I would particularly value the opinions of those who've led the dance at or above the 2500 fps mark.
     
    Last edited: Dec 6, 2012
  2. kelbro

    kelbro Member

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    Loading for that speed requires linotype hardness. I've done it but for me, it's a waste since I use lead for hunting, not target (in 308). I shoot a lot of cast 308 at 1800-1900 with Lyman #2 alloy and gas checks.
     
  3. Duckdog

    Duckdog Member

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    Blarby,

    I load the 06 to 2150 fps with a 170 LFNGC and have zero issues. I use air quenched WW and have no leading. I am positive the 308 will do similar, but I stopped that at 1900 FPS.

    Just make sure you get a good fit to the bore and use a good lube and you should be good to go.

    The Lee 2nd edition goes into pressures compared to hardness and I find it to be very goo info. They also give some excellent loads to play with too achieve some pretty nice loads.

    In the 06 I am using xmp 5744, which I find to work well with most cast rifle loads.
     
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