Is 9x39mm the best subsonic cartridge?

Is 9x39mm the best subsonic cartridge?

  1. 3 weeks ago
    Anonymous

    No because I can't get it. It's shit.

  2. 3 weeks ago
    Anonymous

    All subsonic rifle cartridges are the same damn thing. The only thing that makes one better than another is availability, making 300blk the best.

    • 3 weeks ago
      Anonymous

      I mean from a military perspective, not civilian availability. Do armor piercing 300 blk projectiles compare favorably in terms of being able to punch through a helmet or body armor?

      • 3 weeks ago
        BigC

        >Do armor piercing 300 blk projectiles compare favorably in terms of being able to punch through a helmet or body armor?
        yeah, mr guns and gear tested 300blk subs and they went through iiia helmet

      • 3 weeks ago
        Anonymous

        Through 3a, yes. I'm sure a 300blk AP round could be developed but western militaries haven't given enough of a shit to do it.

      • 3 weeks ago
        Anonymous

        subsonic is all about weight so 9x39 is still probably better more energy larger diameter and they're designed to tumble

        • 3 weeks ago
          Anonymous

          Armor penetration is best achieved with velocity, if velocity is capped, kinetic energy has nothing to do with it, bullet materials is your biggest factor now, and a smaller diameter would do better.

          • 3 weeks ago
            Anonymous

            You don't necessarily need a small diameter. You could pen lvl 4 with a subsonic .950 JDJ if the projectile had similar shape to a .375 Cheytac. High sectional density doesn't just mean "thin".

      • 3 weeks ago
        Anonymous

        if you're using subsonic ammo you should be relying on sneak attack critical which ignore armor

      • 3 weeks ago
        Anonymous

        Well, from a military perspective, the only nations that actually field body armor are NATO. And if you're trying to do anything beyond iiia, level IV plates stop 30-06 AP, so I'm fairly certain level IV plates couldn't give a fuck about some subs.

    • 3 weeks ago
      Anonymous

      And the fact that 300blk can effectively use real light for caliber supers, and heavy for caliber subs, in a gas gun, most other rounds can only do supers or subs reliably.

  3. 3 weeks ago
    Anonymous

    its ok

  4. 3 weeks ago
    Anonymous

    No, that belongs to 1997 Chrysler minivan

  5. 3 weeks ago
    Anonymous

    No, that's 45 ACP, the best subsonic, supersonic, and hypersonic pistol round

    • 3 weeks ago
      Anonymous

      45acp suppresses like dogshit out of a pistol.
      loud as fuck unless the suppressor is massive and filled with water.
      t. has more suppressors than he knows what to do with

      • 3 weeks ago
        Anonymous

        >using a pistol
        Rookie mistake

    • 3 weeks ago
      Anonymous

      45cal hole too big for suppressor. Very loud.

  6. 3 weeks ago
    Anonymous

    For me? It's 12.7×55

    • 3 weeks ago
      Anonymous

      What is this round intended for?

      • 3 weeks ago
        Anonymous

        It was created along side the Ash-12 after the Beslan terrorist attack in 2004. It was intended to shoot through solid walls and the toughest body amour without over penetrating. It has the same velocity as most pistols.

        • 3 weeks ago
          Anonymous

          >shoot through solid walls
          >without over penetrating

          • 3 weeks ago
            Anonymous

            Idk man, that's apparently what it's supposed to do.

  7. 3 weeks ago
    Anonymous

    No.
    Also subsonic cartridges are only useful within a very specific niche. You give up a lot in making in them subsonic, and compared to a rifle round 300BLK subs and 9x39 are piss poor.
    >but muh AP!
    The 9x39 tungsten core stuff will not penetrate hard armor.

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