At the start of the firing sequence, the bolt is held to the rear. Pulling the trigger permits the bolt to move forward, stripping a cartridge from the magazine, chambering, firing, extracting and ejecting it. A closed bolt gun starts the firing squence with a round already chambered, and the bolt closed on the cartridge. The M3 Greasegun was an open bolt, the Thompson SMG a closed bolt.
British: Lee-Enfield Bolt-Action rifle, Sten Sub-Machine Gun, Bren Light Machine gun, Vickers .303 Machine gun. American: M1 Garand Semi-automatic rifle, M1903 Springfield Bolt-action Rifle, Thompson Sub-Machine Gun, BAR (Browning Automatic Rifle), M1897 Trenchgun shotgun, M1919 .30 Caliber Light Machine gun, .50 Caliber M2 Browning Heavy Machine Gun, Bazooka. German: Karabiner 98K Bolt-action rifle, Gehrwehr 43 Semi-Automatic rifle, STG44 Assault rifle, FG42 Battle rifle, MP40 Sub-Machine gun, MG34 Medium Machine gun, MG42 Medium Machine Gun, Panzershreck. (I may have missed a few. Sorry.)
A sub-machine gun fires pistol cartridges. A machine gun fires rifle rounds.
Yes. A sub machine gun is a machine gun that fires pistol rounds and Uzis are 9mm.
The Americans used: the M9 bazooka, the M1A1 carbine semi auto rifle, the M2 flamethrower, the M97 trench gun shotgun, the double-barrelled shotgun, Colt M1911 pistols, .357 Magnum revolvers, Browning Automatic Rifles, Browning M1919 machine guns, M1A1 Thompson sub machine guns, the M1903 Springfield bolt action rifle, and the M1 Garand semi automatic rifle. The British used: Browning service pistol. The Lee-Enfield .303 rifle. The Sterling Sub-machine gun, the SMG machine gun. Anything that came to hand as they toured europe, the middle and the far east. The Russians used:Tokarev pistol, PPSH sub machine gun, Moisen Nagent bolt action rifle, DP28 machine gun, and the SVT-10 semi automatic rifle. The Germans used: the PTRS sniper rifle, the Panzerschreck bazooka, the Gewehr 43 semi auto rifle(pronounced guh-vai-er), the MP-40 sub machine gun, the STG-44 sub machine gun, the MG-42 machine gun, the FG-42 machine gun, the Karabiner 98k bolt action rifle, and the Walther P38 pistol. The Japanese used: the Type 100 sub machine gun, the type 99 machine gun, the Nambu pistol, the Arisaka bolt action rifle, and the Katana.
The .45 Thompson sub-machine gun and M3 sub machine gun (grease gun) were used in WW2, Korea, and Vietnam War. A sub-machine gun is called a SUB machine gun because it uses "pistol" ammunition. The M3 sub-machinegun looked exactly like a grease gun; hence the name.
Sub machine gun
basically like a normal machine gun its just smaller for better maneuverability. A submachine gun works by cycling the bolt carrier rearwards to cock the weapon. When the bolt carrier is released by depressing the trigger, it moves forward chambering a round, locking the bolt and then firing. The recoil from the round unlocks the bolt and pushes the bolt carrier rearwards again which strips the round from the chamber and ejects it from the weapon.
No
@1915
SMG
sub-machine gun
If you are referring to the present, today's most powerful sub-machine gun is the H&K UMP .45 cal sub-machine gun, or the Kriss Vector SMG. if you are referring to the past however then its undeniably the Tommy Gun. also a .45 cal sub-machine gun.