The first use was in 1907 for the .375 Holland-Schoenauer cartridge for a bolt-action rifle marketed by Holland & Holland.
The first, and probably the first practical and popular belted magnum cartridge is/was the .375 Holland & Holland Magnum. The first NON-magnum belted cartridge was the .400/,375 Nitro Express H&H cartridge. See link below for more information
cartridge belt
Pentium II
First, the term is cartridge. Bullet is the part of the cartridge that comes out of the barrel. Second, the MG42 holds NO cartridges. It is a belt fed machinegun, and has no magazine inside the weapon. The belt hangs outsdie, and has metal links that hold the cartridges together. A standard belt is either 50, 75 or 250 linked cartridges.
One can purchase a cartridge belt from online retailers like Amazon and eBay. Both online websites have awesome customer interaction and customer support.
10 clips
.45 LC
Push the cartridge from the front towards the back, out of the links. This works whether you have a disintegrating link belt or a non disintegrating link belt.
The asteroid belt is where most asteroids reside between the orbits of Jupiter and Mars. It is not a feature on planet Mercury.
Seat belt is a noun, when the words are used together to describe the common automobile safety feature.
Safety belt.
Assuming you're referring to the 9x19 cartridge, the first prototypes were made during the cartridge's developmental period in 1901.