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.30 cal GC'd lead

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

  1. blarby

    blarby Senior Member

    Feb 25, 2011
    Calapooia Oregon
    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 Senior Member

    Nov 11, 2007
    Desert Southwest
    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

    Apr 17, 2005

    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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