What is the 4.6x30 HK?
What is the 4.6x30 HK used for?

Historical Notes:

This cartridge was designed for the Heckler & Koch MP7 Personal
Defense Weapon (PDW). The intent was to offer high-volume fire in
a lightweight, low-recoiling firearm capable of defeating body
armor. Typically, this cartridge is loaded with a steel core, brass jacketed
bullet. So loaded, this cartridge is capable of penetrating a
1.6mm titanium plate and 20 layers of Kevlar at 200 meters. Due to
the limited availability of sporting bullets, as of now, this cartridge is
almost entirely a military, law enforcement, or self-defense
proposition.

What is the 4.6x30 HK?
What is the 4.6x30 HK used for?

General Comments:

Due to the extreme small size of this cartridge, a solider or law
enforcement officer can carry much more ammunition than he can if
he was armed with a 5.56 NATO type weapon. Due to the
lightweight bullet, recoil is minimal, and this offers fast follow-up
shots or repetitive hits during automatic fire. While this cartridge
does a tremendous job of defeating body armor, it does have
limited wounding capacity, due its small caliber bullet. Also, due to
the cartridge's limited application and the lack of adoption by any
major military force, it looks to be headed to obsolescence in the
near future.

What is the 4.6x30 HK?
What is the 4.6x30 HK used for?
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14 Edition Update:

A check of Heckler & Koch's website lists the current submachine
gun chambered for this cartridge as the model MP7A1. The website
also claims that the firearm and round have been adopted by
"several of the world's leading special operation units." A little
more research says the gun and round are being used by the U.S.
Navy S.E.A.L.s, but we didn't find much information beyond one
blog post to confirm this. What we did turn up, just as this book
was going through its first edit, was that H&K is apparently
introducing a civilian version of the MP7A1, a pistol designated at
the HK97 (no shoulder stock is included as with the submachine
gun version). However, beyond the shooting test report we read,
there's nothing, zilch, nada on this gun. Heckler & Koch's website
doesn't list it, and even Google wasn't any help beyond finding the
blog post where the HK97 was being tested. Beyond that, there's
not much chatter about the gun or the ammo, but there may be life
ahead if H&K is indeed making a civilian-ready gun available in this
special round.

What is the 4.6x30 HK?
What is the 4.6x30 HK used for?

Reference:
Retrieved from 14th edition Cartridges of the World (a complete illustrates reference for more than 1500 cartridges by Franks Barnes edited by W.Todd Woodard 12/02/2014, p226

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