It's pretty much going to be either 7.62x51 for NATO weapons, or 7.62x54R for Russian/former Soviet Bloc weapons. Calibers used in that type of weapon in the past include the 6.5x55 Swedish round, the 7.5x54 French round, the 7.5x54 Swiss round, and the 7.92x57 Mauser round.
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M-60 is a belt fed, air cooled, general purpose machine gun.
Did you want to know what calibers were used in machine guns or perhaps what cartridges are for machine guns only.
The M60 general purpose machine gun has an overall length of 43.5 inches (1,105 millimeters).
Before the development of a rapid fire firearm (the machine gun) the fastest you could shoot would be with repeater rifles which couldn't hold as much ammunition as a machine gun could.
M9 pistol, M16 family of rifles (includes A1, A2, A4, and A5 variants), CAR-15 family of rifles (includes GAU4/5, M4, M4A1, etc), M14 and variants (includes M21, M14EBR, etc.), M249 SAW light machine gun, M60 General Purpose Machine Gun, M240 General Purpose Machine Gun, M2 HBAR heavy machine gun.
The M60 general purpose machine gun is chambered for the 7.62x51mm NATO cartridge.
It varies. Generally speaking, if one pull of the trigger will cause the weapon to fire unitl all available ammunition is expended, you have a machine gun.
shoot people.
No. It is an assault rifle. It can fire automatically like a machine gun, but only for short bursts because of its fixed barrel and small ammunition capacity.
The purpose of inventing the machine gun was to have better fire power during the wars to defends places and win positions and the war.
The M60 general purpose machine gun fires the 7.62x51mmNATO cartridge from disintegrating M13 belt links.
Measurements as in ammunition size? 45 ACP (Automatic Colt Pistol)