Intermediate cartridges
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Intermediate cartridges. Kinetic energy ranges between 1,400–2,100 J (1,033–1,550 foot-pounds), muzzle velocities of 600–800m/s (1,970–2,625 ft/s) and bullets of 7–9g (108–139 grains).
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An assault rifle is a selective fire rifle or carbine firing ammunition with muzzle energies intermediate between those typical of pistol and battle rifle ammunition. Assault rifles are categorized between light machine guns, intended more for sustained automatic fire in a support role, and submachine guns, which fire a handgun cartridge rather than a rifle cartridge. Assault rifles are the standard small arms in most modern armies, having largely replaced or supplemented larger, more powerful battle rifles, such as the World War II-era M1 Garand and Tokarev SVT.