The proper name is a cartridge. No, not all guns use catridges. Muskets used loose gunpowder and lead balls. Pellet guns use air or compressed gas to drive a pellet. Spear guns use spear and big rubber bands to drive the spears (divers).
No
The US Battleship Iowa's 16" diameter barrel guns fired shells upwards of 2,700 pounds. The WW2 German Schwerer Gustav railway cannon fired shells upwards of 15,000 pounds. The Japanese battleship Yamamoto had 18 in guns and fired a 3300 lb shell.
Because a spinning bullet travels in a straighter line, for further, than a bullet which is not spinning. So, in a word, "accuracy" is why a gun puts a spin on a bullet. Not all of the guns put spin on the bullet though. Those that do have rifled barrels(grooved on inside). There are also smooth bore guns that do not cause the projectile to spin.
It all depends on the gun and its specs like the guns velocity.
They use proprietairy shells, not common to other guns.
Size of the bullet
ebay
There are many different types of guns! Shot guns, rifles, hand guns, pistols, even paint guns and air soft guns. Then with each type there are different callibers, which is the size of the bullet that is shot through it. the higher the number the bigger the calliber therefore the bigger the bullet and generally the bigger the gun.
you have to be 18 years or older to buy guns and ammo for guns
bullets are shot from guns.... You do not make wheel's for them.
Cap guns don't have bullets.
"Wanted"