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AA#7 in 9mm

Discussion in 'Handloading and Reloading' started by JO JO, Aug 28, 2011.

  1. JO JO

    JO JO Well-Known Member

    anyone use AA#7 in 9mm does it work well ?
    also thinking of power pistol but i have read it has a bad flash to it
    looking for a powder that fills up case a mediam burn.
  2. ljnowell

    ljnowell Well-Known Member

    I've got some pictures on this forum of Power pistol in a 45acp with 185gr HPs. Its flashier than some powders, but its not like h110 or 2400. I wouldnt be too afraid to use it really, but thats just me. I have some experience loading Power Pistol in 9mm and I can tell you, its a good powder for it.
  3. 3leggeddog

    3leggeddog Well-Known Member

    9mm powder

    AA 7 is pretty slow for a 9mm. I found that unique [medium burn rate ] or good old W-231 works great.
  4. oldreloader

    oldreloader Well-Known Member

    I have used AA #7 in 9MM and it will work ok.I shoot cast bullets and it works best FOR ME in 9MM with 125 gr and 147 gr bullets.
  5. ArchAngelCD

    ArchAngelCD Well-Known Member

    I haven't used AA#7 in the 9mm but I have used AA#5. I liked the results I got from AA#5 but I personally feel AA#7 might be too slow a powder in the 9mm. The 40 S&W yes but possibly not the 9mm. My favorite powder in the 9mm is Longshot.
  6. SHR970

    SHR970 Well-Known Member

    I've run lots of #7 through the 9mm. It works best with 124gr and heavier jacketed or thick plated bullets. I have not experienced a flash issue with it; I have a ported barrel on my P89. It makes good enough port pressure that the muzzle actually goes down a little. #7 was originally developed for subgun ammo featuring 147 & 158 gr. bullets. This powder likes to run on the stiffer side of the charge. I am still loading to older data with no signs of pressure problems (the newer data has been reduced a bit)((work up, YMMV, at your own risk)).

    #7 is also a good crossover powder for 357; I particularly like it with 125 gr. HP's for use in my SP101.

    If you are going to run 115 gr. pills, use something faster like #5, Herco, Unique, WAP; 231 / HP38 just to name a few.
    Last edited: Aug 29, 2011
  7. JO JO

    JO JO Well-Known Member

    I been thinking of power pistol aswell is the flash and blast real bad with this powder
  8. highlander 5

    highlander 5 Well-Known Member

    According to AA,No 7 was developed with the 9mmx19 in mind.
  9. dougader

    dougader Member

    I only ever used AA7 with 115 grain bullets in 9mm. Speer 14 data up to 9.6 grains. Work up to this. Just guessing, but I think it runs into +P territory near 9.6 grains.

    I like VV 3n37, Power Pistol, WAP/Silhouette for better all around powders in 9mm. VV3n37, AA7 and Silhouette have less flash than Power Pistol but when does that really come into play for you? I don't generally use handloads for SD so I pay less attention to muzzle flash.

    AA7 uses nearly 2/3 more powder than the others, too.
  10. ArchAngelCD

    ArchAngelCD Well-Known Member

    Where did you get that information? Source please...
  11. Steve C

    Steve C Well-Known Member

    AA7 is the canister grade of the powder used by the Israelis for their 9mm SMG ammo. Burn rate similar to Blue Dot it is one of the slower powders that will still work in the small case of the 9mm. If looking for maximum velocity in 5" or shorter handguns then a faster medium burn rate powder is better but for carbines AA7 will work very well.

    For example a 8.0gr load of AA7 behind a 115gr Rem JHP produce 1,163 fps from my Glock 19. 6.3grs of Power Pistol sends the same bullet out of the muzzle of the same gun at 1,222 fps as does 5.7grs of Unique.
  12. BullfrogKen

    BullfrogKen Moderator Emeritus

    Comes right out of the Accurate Arms loadbook. I have one here at the house.

    I've had a lot of success loading mid-power 38 Supers with it. It'll work the best with heavier grain bullets in a 9mm. It will meter extremely well. It does not have much flash, but there are other powders that will do better if flash is a consideration. It will fill up the case quite nicely. I have to use about 2 grains more powder in my 38 Super to achieve the same velocity that I get when I use AA No5.
  13. highlander 5

    highlander 5 Well-Known Member

    According to the free reloading guide from Accurate Arms giving a description of each of their powders and the cartridges that they are used for.
  14. DanTheFarmer

    DanTheFarmer Well-Known Member

    I've got a Hi-Point 995ts on back order. It sounds like AA #7 might be a good candidate for some 115 grain reloads intended for its 16" barrel.

    Anybody use AA #7 for 9mm carbines?


  15. zeke

    zeke Well-Known Member

    AA-7 is excellent powder for 124 grain jacketed 9mm, and seems to prefer magnum primers for accuracy/velocity.
  16. ArchAngelCD

    ArchAngelCD Well-Known Member

    Thank you both... I think AA#7 warrants further consideration...
  17. SHR970

    SHR970 Well-Known Member

    Accurate Arms Reloading Guide Updated 5th Edition Copyright 1992.
  18. Walkalong

    Walkalong Moderator

    Which is loaded hot.

    For anything but top end loads, AA # 7 is a bit slow for 9MM, IMHO. There are better overall 9MM powders the way I see it.
  19. helotaxi

    helotaxi Well-Known Member

    Longshot is slower than AA#7.

    AA#7 is suitable for heavier bullets (124gn+) in 9mm and Hornady lists it as producing the highest velocities with 124 and 147gn bullets.
  20. ironhead7544

    ironhead7544 Well-Known Member

    AA#7 works fine in the 9mm. Loaded a lot of SMG ammo with it and it worked the action perfectly. No problems with pistols either.

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