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Any favorite loads AA#5 or 7 for 165gr.JHP 10mm?

Discussion in '10mm Reloading Forum' started by 21Glock, Jun 20, 2012.

  1. Hi,
    Just picked up a new Gen 4 20. My reloading supplier only has 165gr. JHP slugs in at the moment. I have AA # 5 and #7 that use for other calibers.

    Anyone have some favorite loads for a 165gr. JHP in 10mm Starline brass using these powders?

  2. Yondering


    Dec 3, 2011
    AA7 is a good choice. AA5 is too fast for maximum velocity, but would work OK for "10mm Lite" loads.

  3. _The_Shadow

    _The_Shadow Ret. Fireman

    Jul 23, 2007
    Southeast, LoUiSiAna
    Hey how much are the G20 4th gens going for in GA?
  4. With my GSSF coupon I paid $491 at Ed's Safety + tax=$524

    I know regular price at a LGS or even a gun show it would have been close to or over $600 probably. I only had one coupon, so I'll probably just trade in my G21SF later on to get a new Gen 4 21.

    Really like the grip on the Gen 4s
  5. gofastman


    Jan 29, 2010
    This doesn't directly answer your question, but I love 9grs of Win Autocomp under a 165gr FMJ!
    use with caution, Its a spicy meatball

    I thought the gen 4 with no backstrap on it was basically a 20/21 SF :dunno:
  6. My Gen 4 20 feels smaller grip wise than my Gen 3 21SF. It almost feels like a Gen 4 17 or 22 in my hands.
    It may the same size as a SF,but I have better trigger reach and grip control than my Gen 3 SF, so something must be different.
    Since no one has answered my question yet, I may go with 12gr. of AA#7 under the 165gr. I saw this load on the Accurate Arms thread.
  7. attrapereves


    Sep 11, 2011
    I haven't used AA#7 with 165gr bullets, only AA#9 for my defense loads. With Speer Gold Dots, I load up 15.2gr of AA#9 which gives me about 1325 out of my G29. The perfect defense load.

    The Accurate Arms posted data for AA#7 and 165gr bullet is: 10.8gr/1,148fps MIN 12.0gr/1,305fps MAX

    Since 12gr is the suggested max, I'd start at around 11gr and work up to 12gr, watching for any signs of over pressure.
  8. I'll probably put together a test batch tomorrow when I get back from the gun show. 20-30 rounds of the 11gr. loads and 10-15 of the 12gr. AA#7 loads and watch for bulges. Thanks for the input!