Why did Winchester Stop 452AA Powder? Great for AA Hulls

Discussion in 'Reloading Bench' started by Gatorgun, Oct 6, 2025.

  1. Gatorgun

    Gatorgun Member

    You know I am old when I am not over Winchester ending the 452AA powder.
     
    Gatorgun, Oct 6, 2025
    #1
  2. oldmanair

    oldmanair Active Member

    I find that when I really like something it goes away...... True in this case
     
    oldmanair, Oct 7, 2025
    #2
  3. bobski

    bobski USN Retired Range Owner

    it was a dirty powder.
    it was replaced with cleaner powders.
     
    bobski, Oct 7, 2025
    #3
  4. Armory178

    Armory178 New Member

    Win 452AA was an excellent ball powder and was quite popular back in the '70's for duplicating 12 ga 2¾ dram equivalent - 1⅛ oz. AA reloads. It was a clean burning powder and metered very well and unfortunately for some unknown reason Win discontinued it.
     
    Armory178, Oct 9, 2025 at 3:30 PM
    #4
  5. bobski

    bobski USN Retired Range Owner

    700x and new winchester powders required less to achieve the same as 452aa....and they were cleaner. i use to use 452aa in my rem all american hulls and the rxp's way back then. great stuff but filthy.
     
    bobski, Oct 11, 2025 at 11:12 PM
    #5