The M1895 Colt-Browning, also known as the "potato digger", was the first belt fed machine gun to enter production.
Depending on the gun, no limit. A belt fed machine gun can have a belt added to a belt added to a belt.
the machine gun used pelt ammo
N 1
Belt or magazine.
A belt fed machine gun- no limit. The American 180 was a .22 LR machine gun with a 177 round magazine.
ADV - lots of firepower DISADV - requires lots of ammo
Depends on the gun. Some have no limit, since they are fed by a belt.
The Lewis gun used a pan type magazine, either 47 or 97 rounds of ammo.
That depends a lot on the circumstances: Tommy gun is slower, but has bigger ammo PPSH is faster but lower ammo size If you need speed, PPSH is better. If you need stopping power, Tommy Gun is the choice
Depends on what type of machine gun. For most Western/NATO machine guns, the belts come packaged in 100 rounds on M13 disintegrating steel links, and these can be linked together to form as long a belt as one wishes. The linked ammunition for the FN Minimi/M249 SAW typically comes in 100 or 200 round linked increments. For your heavy 12.7mm/.50 machine guns, it's usually 100 rounds linked per box of ammo.
While some would say the Gatling gun was the first,I consider the Maxim machine gun the first true full auto machine gun.
The first true machine gun was invented by Hiram Maxim in the United Kingdom.