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5.56 load using Ramshot TAC

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  • Ravenslair
    CGN/CGSSA Contributor - Lifetime
    CGN Contributor - Lifetime
    • Oct 2005
    • 562

    5.56 load using Ramshot TAC

    I am waiting for my copy of QuickLOAD to arrive, but was wondering if anyone had a good recipe for the following components:

    Winchester .223 brass
    CCI #41 primers
    Ramshot TAC powder
    62gr pulled green tips

    ---and---

    Winchester .223 brass
    CCI #41 primers
    Hodgdon Varget powder
    62gr pulled green tips

    Thanks in advance.
    sigpicNRA Patron Member
  • #2
    Ravenslair
    CGN/CGSSA Contributor - Lifetime
    CGN Contributor - Lifetime
    • Oct 2005
    • 562

    Please ignore. I just found this thread. Sorry about the bother.
    sigpicNRA Patron Member

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    • #3
      Telperion
      Senior Member
      • Jan 2006
      • 537

      Here's the load data from my trials:

      7/5/08 10:30 AM, Chabot Range, 75 deg F
      Rifle: 16" AR-15 type, midlength gas
      Bullet: 62gr SS109 bullets w/c from Wideners
      Primer: CCI #41
      Brass: mixed LC
      2.250" COAL
      Each load tested with a 20 round string

      TAC 25.0 gr
      mean = 2846
      standard dev = 17.7
      min = 2813
      max = 2875

      TAC 25.5 gr
      mean = 2912
      standard dev = 21.3
      min = 2867
      max = 2948

      TAC 26.0 gr
      mean = 2965
      standard dev = 15.3
      min = 2927
      max = 2992

      According to this link from ar15.com, M855 should clock in at 2974 fps from a 16" barrel. So I've been pretty happy with the results from the 26.0 gr load.
      NFA Life Member

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