223 Remington Load - H4831SC??!?!

GBMaryland

Herr Oberst
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  • Feb 24, 2008
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    Anyone know if 20Gr of H4831SC will work with 52 SMK or A-Max bullets in 223 Remington?

    (Hodgdon H4831SC.....)

    Is this a functional load? ...a dangerous load... anyone know?
     
    Re: 223 Remington Load - H4831SC??!?!

    Maryland,

    From what I know, H4831SC has the same burn rate as regular H4831, the SC stands for short cut, which helps in metering.

    If you look at a burn rate chart, you will see that H4831 is relatively a slow burning powder.
    http://www.reloadbench.com/burn.html

    I shoot H4895 or Varget in my 223 loads. The last load I made up with the 52 SMK was 27 grains of Varget with a <span style="font-weight: bold">Moly</span> coated 52 gn SMK, pushing it around 3180 fps (out of a Bushmaster V-Match). That is on the hot end so back it down if you are going to try it. Also take off 1 gn due if you are using non-moly bullets.

    So my conclusion is that 20gn of H4831SC in a Rem 223 would be a safe, underpowered load.

    From what I know, H4831SC has traditionally been used for heavier bullets in the larger magnum cases.
     
    Re: 223 Remington Load - H4831SC??!?!

    Thanks. I screwed up and used an older reference chart to make 100 rounds.

    I'm trying to determine if the bullet pulled is coming out..

     
    Re: 223 Remington Load - H4831SC??!?!

    Bring out the bullet puller. Velocities will be disappointing, and if you're using a gas gun, the pressure curve will not be compatible with expected port pressures.

    OTOH, it might be marginally useful in a bolt gun with a fast twist, long barrel, and bullets at the heavy end of the spectrum. Not ideal but better than nothing.

    Greg