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winchester Powders

Discussion in 'Reloading' started by tac_driver, Sep 26, 2010.

  1. tac_driver

    tac_driver

    82
    0
    Apr 25, 2008
    I did a search on this forum and went to Hodgdon's website, checked the burnrate chart, winchester website i can't find out anything on win act pist, WSL, WAP is in my loadbooks usa manuals. Did they change the name of these to something else?
     
  2. Jim Watson

    Jim Watson

    4,323
    63
    Jul 10, 2001
    Alabama
    They changed the name to "discontinued."

    Do you have a supply and need data or did old data just look good to you?

    The closest thing to WSL seems to be Titegroup and Ramshot Silhouette is close to WAP if not identical.
     


  3. steve4102

    steve4102

    2,372
    725
    Jan 2, 2009
    Yes, According to Johan Loubser at Western Powders, Ramshot Silhouette is the exact same powder as WAP +/- a few new coatings to reduce flash. According to Johan, data is interchangeable, but it's best to use newer Silhouette data.
     
  4. tac_driver

    tac_driver

    82
    0
    Apr 25, 2008
    Thanks for the quick replies. I was just trying to find out what it was because it was in my loadbooks USA.
     
  5. fredj338

    fredj338

    21,957
    1,065
    Dec 22, 2004
    so.cal.
    SOme of the older manuals have data for them, why I never throw them away. What caliber?
     
  6. freakshow10mm

    freakshow10mm 10mm Advocate

    Winchester brand powders are St Marks Powders and share the same nomenclature for the numbered Winchester powders, ie W231 is SMP #231. I'm compiling a chart of all the commercial and non-canister powder types for reference.

    WAP is identical in character to Ramshot Silhouette and data will interchange. The Silhouette has additional flash reducers blended, but does not change the burn characteristics. I'm trying to track down the OEM non-canister nomenclature for this one.

    Auto Comp is #224
    Titegroup is #242
    Lil' Gun is OBP516
    W760 is #760 also sold as H414
    W748 is #748
    WSF is WSX170
    HS6 is #540 also sold as W540
    HS7 is #571 also sold as W571 and reformulated to be Longshot which is now called OBP473
    WST is WAA90