Micro HST Now Available in 9mm 150 Grain

Micro HST 9mm

Federal Premium is continuing to expand their ever popular Micro HST line of ammunition. Now it includes a 9mm load topped off with a 150 Grain bullet.

For those unfamiliar with the Micro HST line of ammo it is a more purposeful spin-off of their industry leading Hydra-Shok ammunition. What the Hydra-Shok was developed to do and does so well is pass the FBI’s barrier testing requirements. The famous FBI tests are a given ammunition must be able to penetrate a certain thickness of glass, clothing, wood, and other barriers. Moreover, once breaking that given barrier it  must achieve a certain depth of penetration. You could imagine where this is important in many law enforcement scenarios, but civilians equally appreciate a hollow-point of this stringent quality.

The Micro HST load is specifically developed for shorter barrel firearms. This is better for consumers because they tend to carry pistols with shorter barrels since it is easier to conceal. So now you have a hollow-point round with decades of proven penetration that is engineered for your Kimber Solo, Smith & Wesson Shield, Glock 43, [insert your short-barrel, carry gun of choice HERE].

The Micro HST line of ammunition factors in a lot of elements important to smaller pistols.

  • Powders chosen for Proper Cycling & Cleaner Burning for Less Muzzle Flash
  • Heavier Bullets & Lower Velocities Reduce Noise & Recoil
  • Nickel Casing, Exacting Bullet Profile & Federal Primer Increase Reliability
Micro HST 9mm

Federal Premium Micro HST 9mm 150 Grain Expansion

It is good to see Federal finally offering the Micro HST in a 9mm. The current, overwhelming popularity of 9mm as both a range and carry caliber makes you almost wonder why it was not offered first over the .380 ACP.

Federal Premium’s full press release can be viewed on Vista Outdoor’s media page HERE.

The outdoors, fitness and anything related to firearms are my passions. I am a S&W Armorer, Glock Armorer, reloader and am coping with an addiction to classic S&W and Colt revolvers (by buying more revolvers). I’ve been a guest writer for Sierra Bullets and love long walks to the gun range.


  • Dickie


  • Bruce

    Probably wasn’t offered first because the 9mm still gets minimum velocity out of a short barrel gun for good expansion.

  • A Fascist Corgi

    “Heavier Bullets & Lower Velocities Reduce Noise & Recoil”

    Does anyone know what the decibel difference is between 9mm and .45 ACP? Or between 124-grain 9mm and 147-grain 9mm? Or between 5.56x45mm NATO and 6.5 Grendel?

    • Frank

      I think it’s somewhere between EEEEEEEEEEEEEEE and EEEEEEEEEEEEEEEEEEEE

  • Madcap_Magician

    I wonder why they did a completely different bullet instead of the 147-gr. that already shows good performance out of short barrels. Also I am betting these are only available in 20-round boxes, which to my mind is the real reason it’s the “Micro HST.”

  • Specs per Federal is a 150gr @ 900fps; 270 ft/lbs of energy out of unspecified barrel length.

    As per the excellent testing over at “Pocket Guns and Gear,” who has the most extensive collection of short barrel gel tests anywhere:

    Current 124gr HST out of a 3″ barrel is 1056fps; 308 ft/lbs with 13″ penetration and .65″ expansion.

    124gr +P HST offers nearly identical results, but bumps the energy up to 358 ft/lbs out of a 3.3″ barrel.

    147gr +P HST out of 3″ barrel: 959 ft/s, 300 ft/lbs of energy, 15.5″ penetration x 0.639″ expansion.

    • Marcus D.

      I read the advert saying “slower speeds for less noise and recoil,” and I’m thinking, “Don’t heavier bullets generally have more recoil? And why the odd 150 grain bullet? What have they done, decreased power and increased bullet weight?” Then I see these results, and I say to myself, “Yup, that must be it.”
      Frankly, I think my 124gr are more than sufficient for power and penetration out of my 3.5″ barreled pocket pistol, and the recoil is more than manageable, even though the little gun only weighs a pound. This HST seems to me to be another of those solutions in search of a question that no one is asking.

      • Risky

        It is an answer to the question of “how much more ammo will Americans buy?” I can’t find 9mm HST in stock at the normal prices more than once every 4 or 5 months online.

    • J.K.

      Yeah, this is a head scratcher for me, since the existing line of HST rounds have tested very well in short barrels by multiple reviewers.

      I suppose this is for the uneducated masses who don’t mind paying a premium for the marketing.

  • USMC03Vet

    Hopefully you guys can do a review on these soon.