SMP 842 Powder Data

Discussion in 'Small Stuff--22s, 20s, and 17s' started by ernierod, Apr 10, 2013.

  1. ernierod

    ernierod

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    I want to reload .223 and use 60gr to 70gr bullets. I have obtained a small quantity of SMP 842 and don't know an awful lot about this powder.Any experienced person out there to offer me some guidence on loading info?? Tnx
     
  2. jonbearman

    jonbearman I live in new york state,how unfortunate ! Site $$ Contributor

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    SMP842,What is it supposed to be close too?I have never heard of it.
     
  3. Terry

    Terry Site $$ Contributor

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    http://www.dtic.mil/ndia/2006smallarms/faintich.pdf
     
  4. bigedp51

    bigedp51

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    WARNING!!! WC 842 is NOT the same as CFE 223: Here is why:
    http://www.ar15.com/archive/topic.html?b=6&f=42&t=372072
     
  5. ernierod

    ernierod

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    Re: SMP 842 Powder Data-223 (WC 842)

    Barrel 16",1:8" twist,Sierra SMK 69gr .223 bullets (#1380),New Federal Brass and WSR primers.Started at 22 grs using SMP-842. In steps of .3grain, increased to 24.4grs carefully looking for any signs of pressure-none found. It became clear,with this particular bbl(Red-X bull) that perhaps a slightly lighter weight bullet,different brand bullet or powder might reliably produce 1" groups or better, at 100yds
     

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