The 4.6x30mm cartridge is a small-caliber, high-velocity, smokeless powder, rebated rim, bottlenecked centerfire cartridge designed for personal defense weapons (PDW) developed by German armament manufacturer Heckler & Koch (HK) in 1999. It was designed primarily for the MP7 PDW to minimize weight and recoil while increasing the penetration of body armor. It features a bottlenecked case and a pointed, steel-core, brass-jacketed bullet.
The cartridge was first introduced as a competitor to FN Herstal's 5.7×28mm cartridge. Heckler & Koch started the development of a semi-automatic handgun for their 4.6×30mm PDW cartridge, but Heckler & Koch canceled the Ultimate Combat Pistol (UCP) at the prototype stage.
Cartridge Dimensions (in millimeters)
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