Reloading 9mm for a silencer...advice/established threads

Discussion in 'Handloading and Reloading' started by Bosn Ski, Jul 21, 2022.

  1. Bosn Ski

    Bosn Ski Member

    Joined:
    Apr 16, 2019
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    Location:
    Virginia Beach, VA
    I purchased my first silencer and I want to read up on reloading subsonic 9mm loads.

    Any advice is welcome. If you have a good thread to point me too that would be great. I'm looking for advice/information on how to work up a load, beyond the basics.

    Do I used the can to test the load?
    Is there a preferred order of operations to when testing the work up loads with/without the can?
    What am I missing?

    I don't have chrono. I am making plinking ammo for a new toy.

    I've been to the powder manufacture websites and downloaded the data from them.
    I have BE-86, CFE-P, TiteGroup, Bullseye, PowerPistol, HP-38 and AutoComp.

    My current research tells me 147g is the bullet to go with. I'll use RMR if required.

    Thanks.

    Stay safe.

    Ski
     
  2. Soonerpesek

    Soonerpesek Member

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    I use a 147 gr coated RN with Alliant Sport Pistol, obviously loaded to subs.
    First tests I would recommend without the can.
    Make sure no tumbling or keyholing occurs, you don’t want a baffle strike.
    You didn’t list ASP, but it has similar burn characteristics as HP38…NOT the SAME, but SIMILAR…..Someone will be here shortly to scold me….……:)… I use it because it is supposedly good with coated bullets, and I have had good luck with it so far…
    However, an economical chrono will be your friend…
     
    Last edited: Jul 21, 2022
  3. N555

    N555 Member

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  4. dgod
    • Contributing Member

    dgod Contributing Member

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    I don’t know of a 9mm Supersonic load, there may be one, I just haven’t heard of it. Everything I load in 9mm is Subsonic, and works with my Suppressor.

    Good Luck with your challenge..
     
  5. Havok7416
    • Contributing Member

    Havok7416 Member

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    124 grain and lower will be supersonic in 9x19.

    135gr can be made to go subsonic but I prefer to use 147s and I never have to worry.
     
    mdi likes this.
  6. reddog81

    reddog81 Member

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    It's only as complicated as you make it. Most starting and mid-strength 124 loads will be subsonic. How light you can go depends on the specific gun and suppressor. I can use any normal load in my Glock 17 and AAC Illusion suppressor without issue. I have 124 grains loads that basically sound like a loud clap and work just fine. Out of powders listed I would start with HP38.
     
  7. N555

    N555 Member

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    HP38 is not a bad choice it's my go to 45acp silencer load.
     
  8. EricBu

    EricBu Member

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    Best advice......don't bother until you have a chrono. The chrono is absolutely critical for testing with a suppressor. Second, any mild 147 grain load is going to be subsonic, that's the easiest place to start. TG, AA2, any fast powder makes a good sub load, suppressor blowback sucks, especially from a AR type PCC, I've found TG is super awesome there. Jacketed is the best, followed by coated cast, and plated. If running plated or powder coated, be mindful of your crimp...don't split the plating/coating. Hi-Tek isn't nearly has sensitive to this as traditional powder coated. Testing: a super downloaded suppressor load may work fine with the can, but not without it. Why the chrono comes into play. Test without the can to make sure you're subsonic, and the pistol/pcc is fully functional, but you're still ~ 900 fps or so. THEN run the can. Don't be caught by working up your perfect suppressor load, only to discover you're gun wont' run without the can. Final piece of advice...be mindful of the weather/climate/altitude when you're testing. A sub round at sealevel in the desert at 105 degrees isn't in January in the mountains.
     
    GeoDudeFlorida likes this.
  9. jmorris

    jmorris Member

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    I use 147’s with N310, N320 or Titegroup (preferred in that order), very small charges (3.1-3.2 grains).

    I always test loads without the can, first; if it’s integral I pull baffles.

    A cell phone video held in support hand from one of my suppressed carbines, using 3.1gn N310 pushing a 147 plated RN @ 1.160”.

     
    Last edited: Jul 22, 2022
    Bosn Ski likes this.
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