9mm Powders: do you use AA#7?

Discussion in 'Handloading and Reloading' started by 460Shooter, Oct 17, 2019.

  1. armoredman

    armoredman Member

    Joined:
    Nov 19, 2003
    Messages:
    17,806
    Location:
    proud to be in AZ
    Been using AA#7 for years in 9mm for both cast loads and JHP loads. Never any leakage through my RCBS Uniflow. The only problem I found is inconsistent supply. Right now I am using Bullseye to great effect, since I can find Bullseye local and not AA#7.
    I do know they reformulated all the Accurate powders some years ago, so go to the Accurate Arms website for the latest free load data.
     
    460Shooter likes this.
  2. LaneP

    LaneP Member

    Joined:
    Jul 31, 2019
    Messages:
    650
    Think I'm going to go grab some AA#7 today if LGS has any. Looking over the load data on their site, it looks like a great 9mm powder.
     
    460Shooter likes this.
  3. uzimon

    uzimon Member

    Joined:
    Apr 17, 2007
    Messages:
    155
    Location:
    Houston,Tx.
    I use it with 147s also.
    Great results
     
    460Shooter likes this.
  4. Rule3

    Rule3 Member

    Joined:
    Jan 26, 2010
    Messages:
    7,664
    Location:
    Florida
    I have not used AA powders but Power Pistol works just fine/great in 9mm

    Ask 10 people and you will get 13 1/2 answers.
     
    dave333, Toprudder and 460Shooter like this.
  5. ArchAngelCD

    ArchAngelCD Member

    Joined:
    Nov 25, 2006
    Messages:
    26,090
    Location:
    Northeast PA, USA
    Yes I agree, True Blue and Zip are good powders. Unfortunately none of the Ramshot powders are available to me locally. Even though I'm a big fan of HS-6 I could go to True Blue if it were available.
     
    460Shooter likes this.
  6. 460Shooter

    460Shooter Member

    Joined:
    Feb 12, 2011
    Messages:
    12,649
    Thank you all for the good suggestions so far.

    I'm looking to get a good load worked up that I can get some data on before winter sets in. I don't really have room on the lanes though of my semi-local indoor range to set up my Labradar, and I feel chrony results are kind of vital when working up a load, especially if using slightly different components than specific load recipes. So I'd like to get this worked out before weather and snow depths restricts outdoor shooting.

    Based on responses and what powder I have in stock, I think I will in fact start with AA#7, but will also try to get some Power Pistol loads done, and I will look for a pound of Silhouette this weekend. AA#7 I can find all the time for about $23.99/lb. Silhouette is a little spottier. I'm guessing because a lot of people use it. I use AA#5 for my 38 Special +p loads also, and I might see what I can do with that. I'd like to just test these at the same time and figure out what my guns like. Then pound out a few thousand rounds this winter.

    Powder is cheap, and there is no reason to limit myself.
     
    Dudedog, kcofohio and LaneP like this.
  7. Jim Watson

    Jim Watson Member

    Joined:
    Dec 24, 2002
    Messages:
    29,072
    Location:
    Florence, Alabama
    Let us know what your guns "like" and how you tell.
     
  8. Steve C

    Steve C Member

    Joined:
    Jan 5, 2006
    Messages:
    4,861
    I have loaded some 115gr 9mm with 8.0gr of AA7. The velocity wasn't too impressive at 1,163 fps but the STDEV was pretty impressive at 9.24 showing excellent shot to shot consistency. AA7 has a burn rate similar to Blue Dot which provides similar velocity in the 9mm. Both powder fill the case and the load data shows compressed loads using it.

    Have used Power Pistol but its a very flashy powder though velocities delivered are good.

    My favorite powder for the 9mm is Unique. It will push a 115 gr load to near 1,300 fps with 6.2 gr loads out of my Beretta 92f. Unique isn't flashy like Power Pistol, kind of a moderate red color flash when shooting in low light.
     
  9. 460Shooter

    460Shooter Member

    Joined:
    Feb 12, 2011
    Messages:
    12,649
    That IS impressive!

    That’s only a tenth below my preferred charge in 45 acp.
     
  10. Toprudder
    • Contributing Member

    Toprudder Contributing Member

    Joined:
    Aug 19, 2014
    Messages:
    3,300
    Location:
    Raleigh, NC
    I worked up some 9mm loads using AA#7 once, and it gave very good standard deviations and extreme spreads through the entire charge range. I also worked up some loads for my 9mm carbine, where it gave very good velocity, but it wasn’t as accurate as my favorite Power Pistol load.
     
  11. rfwobbly

    rfwobbly Member

    Joined:
    Nov 14, 2008
    Messages:
    5,302
    Location:
    Clarkesville, GA
    I like the Accurate number series a lot, but it does have its issues....

    • Some of the number series come in 12oz containers. You're paying about the same price as other powders, but only getting 3/4 of a pound. So read the label carefully.
    • It is also not a "conservative powder". Your typical No7 loads will be 5.5 to 6.0gr where for the same velocity you might be using 4.0 to 4.5gr of many competitors powders.
    • No5 is really too fast for 9mm, and No7 is a bit on the slower side. There really needs to be a "No6" for 9mm.
    • No2 and No5 will leak from many loose fitting powder measures, but I don't think its such an issue with No7

    All in all, if I was starting out new with no specific needs, I believe BE-86 is a better choice.
     
    MeanBean, Toprudder and Eugen like this.
  12. 460Shooter

    460Shooter Member

    Joined:
    Feb 12, 2011
    Messages:
    12,649
    Struck out on finding any Silhouette this weekend. Nobody had any.

    Guess I’ll use what I have to get started.
     
  13. Typetwelve

    Typetwelve Member

    Joined:
    Mar 1, 2019
    Messages:
    617
    I dug into 9mm loading in the spring. For the most part, I stuck with 115g Hornady HAP projectiles. I tested Acc #7, Sport Pistol, Tight Group, Bullseye. I was not able to get consistent results with either Tight Group or Bullseye. No 7 did well but the definite winner was Sport Pistol.

    (Below is my load data...use at your own risk...although those are very medium charges)
    Loading Hornady HAP 115g projectiles with a seating of 1.080" overall, 6.9g of No7 showed 1132 ave fps, 4.5g of Sport Pistol ran 1135 fps average. All were from my 4.5" XDm.

    Here's my 10 shot groups from 10 yds:

    No7:
    FncDFIdl.jpg

    SP
    B77FLFdl.jpg
     
    Last edited: Oct 22, 2019
    460Shooter and Walkalong like this.
  14. Toprudder
    • Contributing Member

    Toprudder Contributing Member

    Joined:
    Aug 19, 2014
    Messages:
    3,300
    Location:
    Raleigh, NC
    Well, I think that depends on the velocity you are looking for. For reduced loads, I think the faster burning #5 is a good powder.
     
    joneb likes this.
  15. Jim Watson

    Jim Watson Member

    Joined:
    Dec 24, 2002
    Messages:
    29,072
    Location:
    Florence, Alabama
    Strange, I didn't have any trouble with factory duplication loads out of my one can of #5.
     
    Walkalong likes this.
  16. 460Shooter

    460Shooter Member

    Joined:
    Feb 12, 2011
    Messages:
    12,649
    After looking at the load data I had and powder I had on hand, I got to setting my dies last night.

    The data I have has a Winchester FMJ loaded to an OAL of 1.100" and a powder charge of AA#7 between 6.4 and 7.4gr. I'm using RMR TC-MWs so I'm basically starting with the loads you mentioned, starting lower on charge, and working up to see what I can do.

    I'm excited to try out Silhouette as the accuracy Walkalong posted is impressive. I'm guessing I'll work with some other powders next spring. Velocity testing is problematic right now in my area. Variable weather is keeping me out of the woods.

    I'd like to hit 1100 fps (or close to it) from a 3 inch barrel as it mirrors the velocity I measured on my preferred carry loads (124 gr HST +p) out of my P938. However, I don't really see myself loading +p practice ammo. That gun is small enough I don't have any desire to beat the hell out of it shooting a steady diet of +p ammo.
     
    Toprudder likes this.
  17. LaneP

    LaneP Member

    Joined:
    Jul 31, 2019
    Messages:
    650
    Finally got to the range to test some Accurate #7 in 9mm using a Hunter's Supply 125 grain cast flat point.

    This is a .356" bullet with a crimp groove aimed at 9mm and .357 Sig shooters. The maker recommended COL for 9mm loads is 1.050", which places the case mouth right at the crimp groove. Charges were thrown with my RCBS Uni-flow powder measure and the loads were assembled and taper crimped in RCBS dies. Cases were new Starline and Remington SPP.

    (Quick note on the RCBS Uni-flow...that powder measure is the most consistent I've ever used, and meters powders I normally have a lot of trouble with in other measures. I tested other powders and loads today and the overall velocity consistency was amazing. Can't say enough good things about this powder measure).

    A charge of 7.0 grains Accurate #7 averaged 1039 fps for six shots from my 3.1" bbl P365 with an extreme spread of 16 fps. It was very comfortable to shoot.

    I did a lot of reading about this powder before loading it, its history and original design intent. It is very dense, with 7.0 grains sitting comfortably below the base of a seated bullet. Given its performance, combining it with the Hunter's Supply 125 grain cast FP would make an excellent general purpose range load. This charge with this bullet functioned perfectly and looked to be very efficient. I can see this powder in my future, no problem.

    79DmAvdvSbWi6eTlD6f5-rxjH-fCwyMv4UyTc8dCqliGXwxBCd4q7G1EvuyrtqHzN7nVSfNis8mKcM6wNg=w1072-h888-no.jpg
     
  18. Typetwelve

    Typetwelve Member

    Joined:
    Mar 1, 2019
    Messages:
    617
    Woa-momma! I looked those bullets up and unless you're getting them in a 2000 qty, you might as well but factory loaded ammo. I wanted to give them a try but at $18/100...I'll pass.
     
  19. LaneP

    LaneP Member

    Joined:
    Jul 31, 2019
    Messages:
    650
    I got mine for $8.50/100. Granted you have to add shipping but if you coordinate your buy with other items it helps soften the blow :)
     
  20. 460Shooter

    460Shooter Member

    Joined:
    Feb 12, 2011
    Messages:
    12,649
    Thought I’d do a quick update. Headed to the woods today. DE041E0A-38A9-464F-884F-B802E18D244A.jpeg
    Today the weather cooperated and I managed to test my first 9mm loads. I loaded 100 rounds at 6.9, 7.0, 7.1, 7.2, and 7.3 gr of AA#7 under 124 gr RMR Truncated Cone Match Winners, with a COL of 1.100”. CCI primers were used.

    I shot them from a P30SK and a CZ Shadow 2. Unfortunately I was fighting the wind and I had to rush my shots a bit between gusts. That made accuracy testing a little tricky. But I got some data and seem to have found an accurate load. I managed to shoot a 2.25” group at 25 yards off hand, despite the wind. Seems fine to me, and I’m guessing a rest would’ve done much better.

    That was at 7.0 gr and was very pleasant. The results from a 20 shot group were the following.

    Shadow 2
    1095 fps average
    1108 high
    1067 low
    40 ES
    11.2 SD

    P30SK
    1039 average
    1063 high
    996 low
    67 ES
    16.7 SD

    They shot better from the Shadow2, but that likely has something to do with the longer sight radius and barrel. And honestly the wind got bad so I question the accuracy of all these loads and suspect they were better than my perception.

    I think now that I have some velocity data I’m going to load up a new ladder starting at 7.0 and going up to 7.4 and then try them at my local indoor range so wind is eliminated. I’ll try the P30SK at maybe 10 yards and the Shadow at 25 again. At 7.3 gr the recoil was noticeably more stout and groups opened up but fatigue may have been coming into play by then. I’m also making fun practice ammo so I guess I’m really just looking at reasonable velocity and good accuracy.

    All together I feel it was relatively successful and I had fun. A 500 round day is a good day. I am under the weather also so that might have contributed to the difficulty with accuracy testing. Honestly I probably shouldn’t have even been shooting.

    That’s likely the last day I’ll break out the chronograph. Winter is coming. So in spring I’ll load up some different powders.

    On another note, afterwards I grabbed my walking stick and went in a short walkabout. Didn’t have much energy but it was still nice to stretch the legs where there’s no cell signal.
    CC0380F6-D91A-446B-96C4-BE11D45C21C7.jpeg 7B3AB7C0-3FB8-4EF8-A8E1-3DE3990C6784.jpeg 63FE15EF-4789-430C-BD22-B568A86986CF.jpeg
     

    Attached Files:

    Last edited: Nov 10, 2019
    Walkalong, Toprudder, Dudedog and 2 others like this.
  21. frankmako

    frankmako Member

    Joined:
    Mar 30, 2012
    Messages:
    702
    Location:
    Southeast Tennessee
    back when i loaded 9mm i used #5. worked well in my pistols. when 9mm ammo became cheap i stopped reloading it.
     
    Toprudder and 460Shooter like this.
  22. 460Shooter

    460Shooter Member

    Joined:
    Feb 12, 2011
    Messages:
    12,649
    AA#5 is another powder I keep on hand would like to try out.
     
  23. LaneP

    LaneP Member

    Joined:
    Jul 31, 2019
    Messages:
    650
    I got exactly 1039 fps for 7 grains with a 125 grain cast flat point from my P365. Great results!
     
    460Shooter likes this.
  24. Dudedog
    • Contributing Member

    Dudedog Contributing Member

    Joined:
    Oct 19, 2013
    Messages:
    6,383
    Location:
    Southern CA
    Nice country 460:thumbup:
     
    460Shooter and Walkalong like this.
  25. a075923

    a075923 Member

    Joined:
    Feb 18, 2020
    Messages:
    17
    Reloaded my first pistol rounds for a S&W model 39-2 9mm. Nosler 115 JHP, CCI primers, mixed brass, and AA #7. Started at 7.0 at 1.077 then worked up to 7.5. The 7.5 had better groups than the 7.0/7.2/7.4. I don't have a way to check velocity. The only thing I didn't like about AA #7 was my Lee disc tend to leak a little. Going to shoot them in my Star BM this afternoon afternoon and see how they do with that pistol. Thanks Mike
     
    460Shooter likes this.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice